Main definitions of clamp in English

: clamp1clamp2

clamp1

noun

  • 1A brace, band, or clasp for strengthening or holding things together.

    ‘I have fixed the motor to the table with two clamps’
    • ‘Probably a ring-shaped structure holds the DNA like a sliding clamp.’
    • ‘A note of caution: stainless steel hose clamps aren't always stainless.’
    • ‘Start by attaching the flexible vent from vent-connection kit to the periscope vent, using the band clamps in the kit.’
    • ‘Jack ran to the back of the mainframe and released the hydraulic power clamps.’
    • ‘She took an old broom handle and attached her garden hose to it with four metal hose clamps.’
    • ‘Back in the early days, most hose clamps were steel and corroded readily.’
    • ‘Once it has dried, remove the clamps.’
    • ‘Bending a walnut stock is done by adding gradual heat, a procedure requiring special clamps and vises.’
    • ‘Secure your work with a vise or clamps: at elbow height for general filing, lower for heavier filing, and nearer to eye level for delicate work.’
    • ‘Today with the good quality stainless steel clamps, the second clamp is not as critical as in days of old.’
    • ‘With a whine, the hydraulic clamps extended, moving the severely damaged chassis walls down to the floor.’
    • ‘Then turn both top and bottom plates on their sides and put them together using large jaw clamps.’
    • ‘The dolphins could also attach a clamp onto an intruding diver, which would act as a restraint device.’
    • ‘The extensions are actually part of each side of the saw clamp, riveted together at the outer end.’
    • ‘Another very useful tool is a laminate flooring clamp, which tightens together tongue and groove boards.’
    • ‘Use small wood blocks or clamp covers so that clamps will not mar the wood.’
    • ‘When the leg placement is correct, tighten the clamps.’
    • ‘Tighten the clamps alternately so the joints meet as evenly as possible.’
    • ‘Check the edges for alignment often before tightening the clamps down.’
    • ‘The barrel is held in place by a simple clamp and setscrew arrangement.’
    brace, vice, press
    View synonyms
    1. 1.1
      short for wheel clamp
      • ‘When I came out they had put a clamp on my wheel.’
      • ‘A motorist was so furious after his van was clamped that he sawed the clamp off and drove away, York magistrates heard.’
      • ‘He was very polite but wouldn't take the clamp off till she paid him.’
      • ‘Affected motorists now face a hefty fine to remove the clamp or to be reunited with their vehicle.’
      • ‘The parking attendants give out the maximum number of parking tickets and clamps.’
      • ‘An angry student had to pay £58 to have a car clamp removed - despite having a parking ticket.’
      • ‘Many have been faced with £95 bills to remove clamps.’
      • ‘Several people have been caught in a new crackdown at the Dipple Centre in Wickford Avenue, Pitsea, and have had to pay £80 to have the clamps removed.’
      • ‘Motorists will have to pay for their vehicles to be released from the clamps and any not claimed after two weeks will be crushed.’
      • ‘He paid £38 for the release of the clamp but then lodged an appeal with the National Parking Adjudication Service.’
      • ‘Now Nicola is demanding to know why a bailiff charged her more than £400 to release a wheel clamp.’
      • ‘Owners of clamped vehicles are obliged to pay £200 to get the clamp removed and buy a new tax disc.’
      • ‘Therefore, don't try to remove the wheel clamp yourself as you can be accused of causing criminal damages.’
      • ‘While clamping will end, persistent offenders will have cars towed away with a release fee of £105, against the £55 charged for a clamp.’
      • ‘The inspector said: ‘We had one owner who managed to take the clamp off by hand but we managed to trace the vehicle and fine him.’’
      • ‘They refused to remove a clamp from a car outside a doctor's clinic even though the owner needed to bring his son to hospital and had no money.’
      immobilizer, wheel clamp
      View synonyms
  • 2An electric circuit which serves to maintain the voltage limits of a signal at prescribed levels.

    • ‘The conventional whole-cell voltage clamp recording method was employed.’
    • ‘Note that at the most negative voltage the clamp becomes unstable, indicating that here the capacity is overcompensated.’
    • ‘Single OHCs were studied under whole-cell voltage clamp.’
    • ‘When the driving voltage of sense amplifier exceeds the reference voltage, the clamp drops the driving voltage of sense amplifier.’
    • ‘A clamp circuit controls the terminal voltage of the smoothing capacitor to a predetermined level so as to produce a power supply voltage.’
    • ‘Electrical plug device including optical plug and socket connectors, terminal clamps connecting to electric mains, and an electronic bus coupler’
    • ‘We set up each experiment to take a series of 27 images with the clamp voltage switched back and forth between 0 mV and a test voltage after every three image frames.’

verb

  • 1with object and adverbial of place Fasten (something) in place with a clamp.

    ‘the sander is clamped on to the edge of a workbench’
    • ‘Stabilize tools for sharpening by bracing them against a solid surface or clamping them in a vise.’
    • ‘They were clamped in place whilst the resin cured by screwing in bolts.’
    • ‘Use a straight edge and clamp the boards down to make an even, straight cut.’
    • ‘The solution is to clamp a pair of straight-edge boards in place to serve as a saw guide.’
    • ‘At first the mirrors were just clamped onto aluminum blocks, but the linkage was a major source of vibration.’
    • ‘Loosely clamp legs together at their centers with C clamps.’
    • ‘She placed a motorized device onto the rope and clamped it in place.’
    • ‘All tools should be clamped securely (with the blade up) in a vise before they are filed.’
    • ‘With the bike upside down, clamp the top of the seatpost into a large bench vise that is bolted to a very secure workbench.’
    • ‘To make a bolt, a smith clamped the screw plate onto a rod of cold, soft iron and turned it down the rod.’
    • ‘I use an electric drill clamped in a vice to turn my wood.’
    • ‘The umbilical cord is usually clamped and cut at this stage.’
    • ‘‘The handle was clamped in a vice on a workbench, yet the blade started vibrating like mad,’ he said.’
    • ‘I clamp together the second corner with the vices.’
    • ‘I clamp a steel straight edge in a vise and just draw the surface over the steel edge a few times.’
    • ‘Plan your cuts so that the direction of the wood grain parallels the long edges and clamp a straightedge to the plywood to guide your cuts.’
    • ‘Metal clamps appeared out of nowhere, clamping her ankles and wrists to the chair.’
    • ‘Prisms and small mirrors also can be clamped in place on their mounts with multiple springs.’
    • ‘To cut acrylic by snapping, first lay out your cut line on the protective sheet, then hold or clamp a straightedge against the line.’
    fasten, secure, fix, clip, attach, make fast
    View synonyms
    1. 1.1 Fasten (two things) firmly together.
      ‘the two frames are clamped together’
      • ‘Erica sat at her seat hands clamped tightly together staring at the clock.’
      • ‘His hands were clamped together tightly, his knuckles white.’
      • ‘I didn't say anything, just led him into the inn, my lips clamped tightly together in disapproval.’
      • ‘An uncanny silence descended on a school as pupils made a superhuman effort to clamp their lips tightly shut.’
      • ‘I started laughing but it came out like a weird snorting, snuffling sound because my jaws were clamped together.’
      • ‘My jaw began to ache from how tightly I had clamped my teeth together.’
      • ‘The wings folded back as the talons clamped together to make feet.’
      • ‘She sucked her lips together like the doors of a lift clamping shut.’
      • ‘I suddenly clamped my lips shut, tried to prevent the intake of air through my nostrils.’
      • ‘His blade hissed, his eyes grew wide, his teeth clamped together in a hard bite that sent a tremor of ache through his jaw.’
      • ‘They feature strong serrated jaws which clamp together when the trap is sprung.’
      • ‘Martina blinks away tears, hardly able to catch her breath with her lips tightly clamped shut.’
      • ‘The lip gloss was so sticky you had to keep your mouth open all day, or else your lips would clamp together.’
      • ‘Spread large rolls thinly with horseradish and thickly with mayonnaise, then pile on the beef, clamp together and eat at once - messily.’
      • ‘His teeth were so clamped together I wasn't even sure how he spoke.’
      • ‘My hands convulsively clenched, my teeth clamped together, my nostrils flared, my lips curled, and a red mist descended in front of my eyes.’
      • ‘Milo had his eyes screwed shut in pain, jaw clamped tight shut lest he cried out.’
      • ‘‘What you mean is that you would like to stay the night’ Raven nodded, lips clamped together tight.’
      • ‘His hands clamped together between his knees, making his knuckles turn white as thoughts tumbled through his head.’
      • ‘They question ancient rituals performed at the site - such us making a wish for prosperity by clamping two padlocks together and hurling them over the cliff - even as they reenact them.’
    2. 1.2 Hold (something) tightly against another thing.
      ‘Maggie had to clamp a hand over her mouth to stop herself from laughing’
      • ‘And it seems the obligatory pungent cigarette, clamped firmly in the corner of the mouth, is a necessary aid to concentration.’
      • ‘Logan tried to get up, but her hand was clamped very tightly around his arm.’
      • ‘He hadn't taken a step, however, before something clamped around his ankle and immobilized him.’
      • ‘I tried, clamping my hand onto his arm in a desperate effort to make him understand, but he shrugged me off.’
      • ‘She clamped a hand onto the other girl's shoulder, catching her breath.’
      • ‘She came running, a stick clamped firmly between her jaws.’
      • ‘She opened her mouth to scream, but a hand clamped down over her mouth.’
      • ‘Before I could scream, his had his hand firmly clamped over my mouth.’
      • ‘He kept his hand firmly clamped on her wrist so that she would not escape him.’
      • ‘Panic washing over her at the realization, she sat back onto her knees and clamped her hands over her ears.’
      • ‘A pair of hands suddenly clamped down on her shoulders, making her jump.’
      • ‘Suddenly a hand clamped down over her mouth, preventing her from crying out.’
      • ‘I screamed even louder, and then I felt a hand clamp over my mouth.’
      • ‘He turned his back, screwed his eyes shut and clamped his hands over his ears.’
      • ‘Dominick seemed amused, his teeth firmly clamped around his cigar.’
      • ‘I had an angry beach crab clamped tightly onto my nose.’
      • ‘With pipe clamped firmly between his teeth, Voss presents us with a passive observer simply looking forward to a few days of quiet fishing.’
      • ‘Alex clamped her hand onto Becky's shoulder and began to slow her pace down.’
      • ‘In the infinitesimally small light, I saw Jason bang against the edge, and I clamped a hand over his mouth before he could cry out.’
      • ‘Renae cried trying again to pull away, but Jake's hand remained clamped around her wrist.’
      clench, grip, hold, press, squeeze
      View synonyms
    3. 1.3with object Immobilize (an unlawfully parked car) by fixing a wheel clamp to one of its wheels.
      ‘he had flown into a rage when he found his car was clamped’
      • ‘On their return at around 5.00 pm they found their cars clamped.’
      • ‘This week signs have gone up in Kelham Gardens warning drivers they will be clamped if they park there.’
      • ‘What do Brits do when they find their car has been clamped for illegal parking?’
      • ‘After 2 hours of waiting I was in danger of being clamped in the car park, so I told the nurse I would go home and phone in an hour to see which ward he was in.’
      • ‘His Ford Escort had been clamped in the car park of the Black Bull pub in the village.’
      • ‘A businessman was one of about 12 motorists whose vehicles were clamped on Thursday.’
      • ‘They claim their cars have been clamped only a few minutes after their pay-and-display tickets have expired and criticise the clampers for refusing to negotiate.’
      • ‘Doctors' patients have reacted with fury after being clamped in a surgery car park.’
      • ‘Last year I got my car clamped in the car park in Haworth.’
      • ‘Prior to this illegally parked vehicles were clamped at any hour of the day or night.’
      • ‘All illegally parked cars should be clamped or removed.’
      • ‘‘They are continuously clamping staff cars,’ said one employee who wished to remain anonymous.’
      • ‘Developers have been told to stop clamping cars parked on an estate access road in Marlborough after county council lawyers said it was illegal.’
      • ‘The parking charges apply 24-hours a day, 365 days a year, with any car illegally parked being clamped.’
      • ‘People don't want their cars getting clamped while they shop here.’
      • ‘There are warning signs around the car park warning motorists they will be clamped if they park without authorisation.’
      • ‘Signs say you will be clamped if you park there, but still they do it.’
      • ‘When they returned from the pool to the pay and display parking space where she'd left her car, she found that she'd been given a ticket and her wheel had been clamped.’
      • ‘There must be notices displayed clearly which should warn people about the possibility of getting their cars clamped if they park in that area.’
      • ‘A total of 69 vehicles were clamped while 32 were destroyed.’
      immobilize, wheel-clamp
      View synonyms
  • 2with object Maintain the voltage limits of (an electrical signal) at prescribed values.

    • ‘Using this circuit, the voltage at V m was clamped with the dSEVC amplifier and measured independently with a second microelectrode amplifier.’
    • ‘A second clamping transistor is connected intermediate the input transistor and a power supply rail and has a gate for receiving an upper clamping voltage.’
    • ‘For good protection, especially for computers, look for a protector with a clamping voltage of less than 400 volts.’

Phrasal Verbs

  • clamp down

    • Suppress or prevent something in an oppressive or harsh manner.

      ‘the authorities have also clamped down on public demonstrations’
      • ‘The authorities are clamping down on blogs, which are free sites through which people publish thoughts and opinions.’
      • ‘The harder the government clamps down, the more its opponents strike back.’
      • ‘The GN is also implementing its Tobacco Control Act that regulates the sale of tobacco to those over 19, clamps down on advertising and also restricts smoking in public places and workplaces.’
      • ‘And he warned that police would be clamping down especially hard on speeders over the coming Bank Holiday and extra officers would be deployed.’
      • ‘They may be effective at clamping down on speedsters, but if a camera snaps 50 people speeding, a vast amount of follow-up work then has to be done.’
      • ‘Council chiefs are clamping down on motorists who park on the pavement, blocking the way for wheelchair users and the elderly.’
      • ‘Police across Greater Manchester are clamping down on drivers unfit to be on the road after taking illegal or prescription drugs.’
      • ‘Whatever the case, clamping down on freedom of expression in any of its forms is tantamount to crushing our fledging democracy.’
      • ‘The government was intent on reducing the number of firearms, clamping down on illegal drugs and substance abuse.’
      • ‘She said police were clamping down on those who were speeding.’
      • ‘While the government is intent on clamping down on truancy, it is preventing other children from attending school with equal vigour.’
      • ‘The government may be clamping down on abuses of the asylum system.’
      • ‘Authorities are now clamping down on the cross-border movement of tribal people on both sides of the frontier.’
      • ‘It followed a publicity drive aimed at highlighting tough new laws clamping down on the sale of tobacco to young people under 16.’
      • ‘You may have noticed on the news that in the South the authorities are clamping down on those not wearing seatbelts in the vehicles.’
      • ‘The government is clamping down fiercely on a popular uprising, which has seen hundreds killed.’
      • ‘Marches and demonstrations became increasingly militant, and the Government reacted by clamping down harshly on this civil unrest.’
      • ‘Police say they are determined to clamp down on bikers riding in an anti-social manner, on or off-road.’
      • ‘So let us not forget that there's much power in all of us and the reason why they're clamping down on us is because they're scared of us.’
      • ‘She is also engaging the help of the public in clamping down on crime and anti-social behaviour and putting more community support officers on the streets.’
      suppress, prevent, stop, put a stop to, put an end to, stamp out
      View synonyms

Origin

Middle English: probably of Dutch or Low German origin and related to clam.

Pronunciation

clamp

/klamp/

Main definitions of clamp in English

: clamp1clamp2

clamp2

noun

British
  • 1A heap of potatoes or other root vegetables stored under straw or earth.

    • ‘From his own patch he had harvested potatoes the previous summer and had laid them in a clamp.’
    • ‘There is also a theory about making a potato clamp to keep them in over the winter.’
  • 2A three-sided structure used to store silage.

    ‘a silage clamp’
    • ‘Some farmers were also concerned that foot-and-mouth might be brought on to their farms by contractors making silage so did not want to use their silage clamps.’
    • ‘The storage of silage on the pad (either in a makeshift straw clamp, or in plastic bags) is an agricultural use and not development.’
    • ‘A farm here is extraordinary, a huge thing, mostly hidden from a distance bar its fine silage clamp.’
    • ‘At present there is surplus silage on many farms and the advice is to use up the bales by early summer and to seal up any silage left in the clamps.’
    • ‘A preservative is then applied and the grain is ensiled in a polythene-lined clamp.’
    • ‘Farmers are reverting to clamps of silage or traditional haymaking which is very difficult in the conditions which are far from ideal.’
    • ‘It had been his intention to construct the silage clamp as a single structure.’
    • ‘It normally yields 300 tonnes of whole-crop silage which is placed in a clamp constructed from square bales of grass silage.’

Origin

Late 16th century (denoting a pile of bricks for firing): probably from Dutch klamp ‘heap’; related to clump.

Pronunciation

clamp

/klamp/