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1(of motion) revolving around a center or axis; rotational.‘a rotary motion’
- ‘These are potentiometers that operate in a linear direction as opposed to a rotary direction.’
- ‘No mention is made of rotary motion from the elbow or lateral movement from the wrist.’
- ‘The back and forth movement of each piston was translated into rotary motion by a crank shaft.’
- 1.1 (of a thing) acting by means of rotation, especially (of a machine) operating through the rotation of some part.‘a rotary mower’
rotating, rotatory, rotational, revolving, turning, spinning, gyrating, gyratory, whirlingView synonyms
- ‘There were mechanical, rotary dial types and these were pretty good as you could set almost any time very quickly.’
- ‘Ground speed with a rotary hoe should usually be between 8 and 12 mph, and the hoe tips should penetrate deep enough to go through any crust that has formed.’
- ‘You may recall that rotary joysticks have handles that rotate to 12 different positions, designed for aiming in certain games.’
- ‘Publishing used to be a very mechanical industry: trays of metal type, huge Linotype type-casting machines weighing a tonne or so each, gigantic rotary printing machines, and so on.’
- ‘It packs motorized faders, multifunction rotary encoders and a host of keys.’
- ‘After passage through glass fiber filter paper, the filtrate was concentrated using a rotary vacuum evaporator.’
- ‘A rotary dial switch instead of the momentary-contact one used would be a cheap way for it to remember the setting you preferred.’
- ‘If it had a USB port, there would be a lot of money to be made by selling a plug-in rotary dial unit to operate the thing properly.’
- ‘Sidel builds machinery for aseptic packaging of plastic bottles, with a focus on high-speed rotary machines.’
- ‘Ellison's most recent expansion provided the company with some additional equipment including a computer controlled wire-cut machine and a rotary molder.’
- ‘The sole clearly shows the regularly spaced, parallel tool marks of a powered rotary planer.’
- ‘We've gone from having local farmers help out with labeling by hand to running automated labeling machines and high-speed rotary mold machines.’
- ‘Thankfully, these rotary engines show no protest whatsoever when you do work them hard.’
- ‘Back in the 1940s, when the area code system was designed, there was no such thing as a touch-tone phone - all telephones operated via rotary dialing pulse operation.’
- ‘The coil is connected to the main tube by a rotary valve and converts the trombone into a bass in F.’
- ‘A compact utility room houses a shower, hand basin and toilet together with commercial laundry machines and a rotary iron.’
- ‘This is particularly true of rotary combines that operate better at full load.’
- ‘For maximum effectiveness, a rotary hoe should be used when weeds are in the ‘white stage ‘, or just emerging from the soil.’’
- ‘After a short while, in fact several times a day, he has to resharpen the chisels on a rotary grinding wheel he's acquired.’
- ‘Dozens of cultivation tools are at the organic producer's disposal, he added, from rotary hoes to new machines that simply vibrate soil to uproot newly sprouted weeds.’
1A rotary machine, engine, or device.
- ‘Let us look a little at what the auto manufacturer has done, other than winning Le Mans with its rotaries about 12 years ago.’
- ‘On the downside, mulching mowers work less well on wet or overly tall grass compared with nonmulching rotaries, and the cutting blade must be sharp.’
- ‘Past rotaries demonstrated questionable reliability, high fuel consumption and difficulty meeting emissions standards.’
- ‘True, it doesn't get as close as the rotaries, but it gets more hair without making my neck as irritated.’
- ‘By learning from the faults of previous large out-front turf rotaries and increasing engine horsepower, this unit has performed very well for many courses.’
- ‘My experiences with Mazda rotaries has left me an ardent enthusiast of the engine for life.’
- ‘My favourites are still the RX7 rotaries, which give magnificent flameouts and backfires from the exhaust when the drivers lift their foot off the accelerator.’
- ‘His RX-7 made it a solid top four filled with rotaries.’
- ‘The problem is that rotaries have a dipsomaniacal thirst for petrol and oil and produce most of their power at high revs.’
- ‘She looked rather lost unused to choosing between an electric hover or a self-propelling rotary.’
- ‘They were bringing in legislation to ban any cars delivering more than 95 dBA and the early race trim rotaries were producing 112 dBA.’
- ‘An agricultural chemical dealer in the Hingurakgoda area had about 600 small tractors and tractor rotaries, all of which had been pawned.’
2North American A traffic circle.
- ‘As usual, the Fresh Pond rotaries were at a standstill.’
- ‘On rotaries, the only road signs you see are the ones you've just missed.’
Mid 18th century: from medieval Latin rotarius, from rota wheel.
A worldwide charitable society of businessmen, businesswomen, and professional people, formed in 1905.
So named because members hosted events in rotation.
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