Definition of bypass in English:



  • 1A road passing around a town or its center to provide an alternative route for through traffic.

    • ‘As for the town centre, if traffic would use the bypasses instead of coming through it, everyone would gain, especially the pedestrians!’
    • ‘He also expressed confidence that further improvements to the city's infrastructure would be witnessed with the commencement of the city bypass and outer ring road.’
    • ‘He said the old road and bypasses had become ‘almost beyond repair’ following heavy rainfall in August and September.’
    • ‘This points all the more for the urgent need for a bypass to keep heavy traffic out of the town.’
    • ‘The town council asked the county to change its mind over its refusal to undertake a traffic census and also asked highway officials to look into the possibility of a bypass for the town.’
    • ‘Indeed, they may be the developer themselves when it comes to Waste management, sewage treatment and other infrastructural projects such as outer city ring roads and bypasses.’
    • ‘They are also urging the county to undertake a feasibility study to see if a ring road or bypass could be built for the town.’
    • ‘The road links are a lot better now, but that tends to be more of a bypass than a road bringing things in.’
    • ‘In my view the money could be much better spent and still leave more than enough to build a first class safe road with bypasses of major towns such as Castledermot and Carlow.’
    • ‘The bypass should cut town centre through-traffic by 40 per cent.’
    • ‘The opportunity of providing a town centre bypass along the former railway line to the east of the buildings in High Street has now disappeared.’
    • ‘The three-mile bypass will carry traffic away from the heavily congested centre of Alderley Edge.’
    • ‘For years pressure groups have been calling on the authorities to force wagons to use the bypass rather than the town centre.’
    • ‘It would have saved expensive town bypasses, additional roads and parking facilities, not to mention the benefits to the ozone layer and global warming.’
    • ‘This is yet another example of the same twentypercentism which has us building single lane bypasses around market towns when floodlit motorways, visible from the moon, are needed.’
    • ‘It reduces th e number of vehicles on the road so eliminating any need to expend billions of the taxpayer's money on new motorways, road widening schemes and bypasses.’
    • ‘The road tolls are to pay for motorways and town bypasses.’
    • ‘The town already possessed a bypass, intended to remove much of its traffic.’
    • ‘Total cost of the new road and the bypass has been estimated at 90m.’
    • ‘More than 10,000 vehicles have been taken out of the town centre and the bypass has delivered on a promise that it would return the streets to the town and the townspeople.’
    ring road, detour, diversion, circuitous route, roundabout way, alternative route
    relief road
    rat run
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  • 2A secondary channel, pipe, or connection to allow a flow when the main one is closed or blocked.

    • ‘Crews hope to have a temporary above ground sewer bypass in place a little later today.’
    • ‘A few hundred metres beyond camp is a sump and a several hundred metres long sump bypass which opens out at the top of a fantastic streamway.’
    • ‘But Anthony Poole, the council's drainage manager, said the bypass would be designed design to allow the water to pass underneath it.’
    • ‘The Council discounted several land corridors that were home to the fern because it believed the bypass would be blocked by a legal challenge if one of them was chosen.’
    • ‘Seven main Melbourne hospitals went on emergency bypass early this week, straining paramedics and risking patient lives, Victoria's ambulance union said.’
    • ‘This might eventually permit a sump bypass and, having looked closely at the depth potential, it is very close to 1km if they manage to resurge in the nearby river.’
    • ‘Power was restored to the effected racks via a manual bypass onto raw mains at approximately 10: 01 hrs.’
    • ‘The first sump had an easy bypass right next to it.’
    • ‘The road was closed to traffic until late afternoon when a temporary bypass was established to allow cars past the accident spot.’
    • ‘There is also a true relay bypass that allows signal to pass even if the unit is off.’
    • ‘Contracts for the city's second river crossing and bypass are currently being finalised, while work will begin next year on the dual carriageway linking the city with Dublin.’
    • ‘Having come so far we were keen to check every recess in the hope of finding a sneaky sump bypass.’
    • ‘Cut b was to estimate the hydraulic conductance of a leaf where water was prevented from flowing through all the major water paths and any easy bypass of interrupted veins was impeded.’
  • 3A surgical operation in which an alternative channel is created, especially to improve blood flow to the heart when a coronary artery is blocked.

    ‘my granddad is well into his eighties and had a bypass’
    [as modifier] ‘he's just had a triple bypass operation’
    • ‘Technical improvements are helping to reduce some of the risks involved with coronary bypass surgery.’
    • ‘I'm told optimism also helps patients recover from coronary bypass surgery.’
    • ‘How many bypasses are possible through minimally invasive bypass surgery?’
    • ‘In April 1996, he underwent quadruple bypass surgery.’
    • ‘When he was 45, he had to undergo surgery for five bypasses.’
    • ‘Your surgeon will use one of these methods to perform your coronary bypass.’
    • ‘He was on the waiting list for a triple bypass in his home city of Aberdeen.’
    • ‘About 500 minimally invasive bypasses have been performed so far.’
    • ‘Zara stayed there for a month until just before Christmas then returned to Birmingham for corrective surgery on her gastric bypass.’
    • ‘He was born with a heart defect and underwent three bypasses before eventually receiving a transplant.’
    • ‘Your artery may be damaged during the procedure, requiring emergency bypass surgery.’
    • ‘Alternative operations, such as a coronary artery bypass, may be considered.’
    • ‘A small bowel bypass was performed.’
    • ‘He hasn't seen her since she underwent a gastric bypass and lost eight stone.’
    • ‘He recovered from his quintuple bypass in record time and resumed his quest to "save" the sport he dearly loves.’
    1. 3.1The alternative channel created during a bypass operation.
      • ‘Four patients had previous open-heart surgery (three aortocoronary bypasses and one surgical repair of a congenital lesion).’
      • ‘So I wasn't unduly surprised to hear that he was planning to run seven marathons in seven countries in seven days, months after a heart bypass operation, in an attempt to raise money for charity.’
      • ‘While I was in high school an aneurysm formed near one of those fragments requiring a bypass, thus leading Pop to quip that he had sewer pipe in his leg.’
      • ‘Unfortunately, many of us know someone who underwent surgery in the last year, and whether it was a hip operation or a heart bypass, more than likely a blood transfusion was required.’
      • ‘Not long ago he needed a heart bypass operation.’
      • ‘A patient using this for an hour a day over a five-week period will see the same beneficial effects as they would from having a heart bypass operation, without having to risk having this major procedure.’
      • ‘Surgical bypass of severely occluded vessels has been considered the gold standard for use in symptomatic patients who do not respond to more conservative treatments.’
      • ‘A survey in Somerset found that while 99% would allow a smoker to have a coronary bypass, half would refuse a second operation if the patient would not promise to give up.’
      • ‘Techniques have improved greatly here with coronary bypasses to improve blood supply to the heart since 1953 and the replacement of heart valves since the 1960's.’
      • ‘50 per cent of patients would then need surgery such as a bypass or angioplasty.’
      • ‘A second bypass wasn't possible and his future looked bleak, not to mention short.’
      • ‘Patients requiring heart bypasses or angioplasties - a procedure to unblock arteries - are having their operations within three months, she said.’
      • ‘Recently, my wife joined the heart-attack ranks, with a bypass and valve replacement.’
      • ‘In 1967, surgical bypass of blocked heart arteries became possible.’
      • ‘Once the circulation is restored, a bypass should be performed to exclude the aneurysm.’
      • ‘A coronary bypass provides a detour for blood on its way to the heart.’
      • ‘Diagnostic tissue was obtained in cases with unresectable lesions that required a surgical bypass.’
      • ‘Though there's a plateau about 18 months after surgery, a gastric bypass usually trims about two-thirds of excess weight in two years.’
      • ‘Three additional autopsies were performed on patients who had had their surgical bypass performed at other institutions.’
      • ‘He has also had a heart bypass, and an operation on his leg arteries for a condition that left him almost crippled.’


  • 1 Go past or around.

    ‘bypass the farm and continue to the road’
    • ‘They say too many people bypass the town because too little is done to promote it.’
    • ‘The road twisted around bypassing a large reindeer farm.’
    • ‘How could people just have bypassed the town without noticing the devastation there?’
    • ‘Today, the picture was bleak, with visitors bypassing the town and its ‘architectural gem’ Selby Abbey.’
    • ‘Dodging past the pedestrians with his gun drawn, Philip bypassed a bike shop and stopped, leaning on his knees for leverage.’
    • ‘It is a beautiful city unfortunately often bypassed by rushing tourists on their way from Firenze to Venezia.’
    • ‘The railroads, however, had bypassed the town to the east and west.’
    • ‘‘Rather than just observing those vessels bypassing our region, we are launching a Cumbria cruise initiative to increase cruise calls to our ports,’ she added.’
    • ‘Opening or bypassing (getting round) the blocked arteries can help.’
    • ‘Facing determined resistance there, the attackers bypassed the town and advanced on Arracourt.’
    • ‘These procedures create a direct connection from the stomach to the lower segment of the small intestine, literally bypassing portions of the digestive tract that absorb calories and nutrients.’
    • ‘Armed with my home-printed boarding card, I head straight for security, bypassing the hoards of people queueing at the check-in desks.’
    • ‘You will not be able to go around the town or bypass the town on it.’
    • ‘Fighting off panic, he raced over to the stairway, and skipped down the stairs as he had done before, bypassing the grieving dragons, who completely ignored him.’
    • ‘Businessmen have complained that ships have been bypassing Port-of-Spain, due to heavy congestion and the general inefficiency at the port which, they say, in the receipt of containers.’
    • ‘She explained how any spillage should have drained into interceptor tanks to trap oil, but Environment Agency inspectors using dye discovered that oil was bypassing the safeguards and getting into the watercourse.’
    • ‘While the Napa Valley is an internationally known wine region, its largest town is often bypassed by visitors.’
    • ‘As a result it's bypassing some of the slow, tortuous back-roads of development that make Hong Kong feel like somebody took the nineteen fifties and suddenly gave them twenty-first century technology.’
    • ‘I travel all over the UK and it is a pleasure bypassing most towns, looking at countryside instead of built-up areas.’
    • ‘We bypass a farm with fine barns and cross another idyllic little stream by way of four large stepping-stones.’
    go round, go past, make a detour round, pass round
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    1. 1.1Provide (a town) with a route diverting traffic from its center.
      ‘the town has been bypassed’
      • ‘If you take Pennsylvania Avenue now, it bypasses the marshy village and the middling town it once served.’
      • ‘The route, which would have bypassed the traffic-choked villages of South Newton, Stoford and Steeple Langford, has been deleted from the Wiltshire and Swindon structure plan.’
      • ‘The new road will leave the end of the M67 at Hattersley and bypass the four villages to the north before joining the A628 three and a half miles away above Valehouse reservoir.’
      • ‘The town was bypassed by the M4 at the end of the 1960s but fears of it becoming a ghost town were groundless and the tourist and retail centre is busier today than it was in pre-M4 days.’
      • ‘Protesters at Shipton-by-Beningbrough, near York, have been calling for the A19 to bypass their village since the 1930s.’
      • ‘When Kildare Town is bypassed it will create traffic chaos in Monasterevin during peak periods as ever rising numbers of vehicles slow down to a crawl through the town.’
      • ‘People in towns that are bypassed can breathe cleaner air and sleep easier, a scientific survey has found.’
      • ‘Work on the bypass has already commenced and the Council expects that the town will be fully bypassed within the next ten years.’
      • ‘Instead, they would like to see a bridge over the new road, or a scheme, which bypasses the villages altogether allowing them access via roundabouts at either end of the A629.’
      • ‘A pressure group is working with campaigners in Westbury to devise a new link road system for traffic to bypass the town.’
      • ‘Kildavin village was bypassed when the new road was built a number of years ago - thus cutting off any aspect of passing trade.’
      • ‘It is a variation of the short tunnel option, which was extended to bypass the garden suburb of Haberfield.’
      • ‘A study which forecast the level of traffic on Irish roads over the next 20 years was conducted recently and concluded Donegal was best served by an upgraded national road bypassing major towns along the way.’
      • ‘She reiterated that she supported the 1998 Roads Needs Study, which stated the N9 needed to be upgraded and Carlow town should be bypassed.’
      • ‘The National Roads Authority said the aim of the scheme is to provide a dual carriageway that bypasses Waterford City whilst also catering for the needs of the city.’
      • ‘New allegiances came to be forged which bypassed the metropolitan centre.’
      • ‘Whichever route you take you will probably find yourself on the motorway which crosses the Waimakariri River and bypasses the small town of Kaiapoi.’
      • ‘The site is currently used as a driving range and will be adjacent to the proposed new ring road which will bypass Thurles town centre.’
    2. 1.2Avoid or circumvent (an obstacle or problem)
      ‘a manager might bypass formal channels of communication’
      • ‘It seems that the cognitive system has evolved an impressive algorithm that bypasses the problems encountered by formal mathematics.’
      • ‘To bypass such obstacles, an alternative intelligence group - the Office of Special Plans - was created.’
      • ‘And I think those people handicapped by the lack of a diploma can easily bypass this hurdle so long as the stress is placed more on a certificate than on real abilities.’
      • ‘Tendentious jokes are a way of bypassing the barriers against the direct expression of both obscenity and aggression which civilization has set up.’
      • ‘Once inside, however, users are free to post their scripts and screen their short films, bypassing the usual hurdles and addressing a global audience.’
      • ‘And if you get that, if you understand who you are as a person, you can bypass the obstacles that come your way.’
      • ‘The workshops did not bypass the inherent difficulties posed by the environment but presented anecdotal and experiential accounts related in the first person.’
      • ‘On the margins, the contest is just as threatening, and bypassing trouble is becoming a preoccupation for many.’
      • ‘Instead he is faced with fake holymen peddling religious enmity and the purblind nouveau riche materialism of his family who bypass the country's problems in their smart new cars.’
      • ‘In the meantime the software giant is advising users to make changes on a single domain controller, so bypassing the replication problem.’
      • ‘Many on the left sought to bypass political difficulties in winning support at home by emphasising their moral legitimacy rather than their political support.’
      • ‘The goal of grief work is not to find ways to avoid or bypass the emotional turmoil and upsets brought by loss.’
      • ‘However, you will find areas that require combat and some that require the Mechanics skill to bypass obstacles.’
      • ‘This would also bypass the problems of the long, heavy, rough double action trigger pull.’
      • ‘Eternal inflation may bypass the complications of extra dimensions and quantum gravity, because these are relegated to the infinite past.’
      • ‘But the plastics approach bypasses the problem altogether.’
      • ‘It is sought so that Indian State can circumvent and bypass the real ideological challenges in the state.’
      • ‘Under the circumstances, the ministry hopes its new policy initiative would bypass the problem.’
      • ‘Perhaps they were feeling above mundane trivials of life, still moving apace, bypassing obstacles such as moss-covered trees through the vast green tunnel.’
      • ‘But the research team have found a way to bypass this problem by training antibodies to neutralise the damaging toxic waste emitted into the blood stream by meningococcal bacteria.’
      avoid, evade, dodge, escape, elude, circumvent, get round, find a way round, give a wide berth to, sidestep, steer clear of, get out of, shirk
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