Dictionary
Thesaurus
Reference
Translate
Web
rotary
6 dictionary results for: Rotary
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
ro·ta·ry       [roh-tuh-ree] Pronunciation Key adjective, noun, plural -ries.
–adjective
1.turning or capable of turning around on an axis, as a wheel.
2.taking place around an axis, as motion.
3.having a part or parts that turn on an axis, as a machine.
–noun
4.a rotary device or machine.
5.Chiefly Northeastern U.S. traffic circle.
6.Also called rotary converter. Electricity. synchronous converter.
7.(initial capital letter) Rotary Club.

[Origin: 1725–35; < ML rotārius (adj.), equiv. to L rot(a) wheel + -ārius -ary]
American Heritage Dictionary - Cite This Source - Share This
ro·ta·ry       (rō'tə-rē)  Pronunciation Key 
adj.   Of, relating to, causing, or characterized by rotation, especially axial rotation.

n.   pl. ro·ta·ries
  1. A part or device that rotates around an axis.
  2. Chiefly New England See traffic circle.


[Medieval Latin rotārius, from Latin rota, wheel; see ret- in Indo-European roots.]

American Heritage Dictionary - Cite This Source - Share This
traffic circle  
n.   A circular one-way road at a junction of thoroughfares, facilitating an uninterrupted flow of traffic. Also called regionally rotary.

Online Etymology Dictionary - Cite This Source - Share This
rotary 
1731, from M.L. rotarius "pertaining to wheels," from L. rota "wheel," from PIE base *roto- "to run, to turn, to roll" (cf. Skt. rathah "car, chariot;" Avestan ratho; Lith. ratas "wheel," ritu "I roll;" O.H.G. rad, Ger. Rad, Du. rad, O.Fris. reth, O.S. rath, O.Ir. roth, Welsh rhod "carriage wheel"). The international service club (founded by Paul P. Harris in Chicago in 1905) so called from the practice of clubs entertaining in rotation. Hence Rotarian (1911).

WordNet - Cite This Source - Share This
rotary

adjective
1. relating to or characterized by rotation; "rotary dial" 
2. describing a circle; moving in a circle; "the circular motion of the wheel" [syn: circular

noun
1. a road junction at which traffic streams circularly around a central island; "the accident blocked all traffic at the rotary" [syn: traffic circle
2. electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa [syn: synchronous converter

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Rotary

Ro"ta*ry\, a. [L. rota a wheel. See Roll, v., and cf. barouche, Rodomontade, Rou['e], Round, a., Rowel.] Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary motion.

Rotary engine, steam engine in which the continuous rotation of the shaft is produced by the direct action of the steam upon rotating devices which serve as pistons, instead of being derived from a reciprocating motion, as in the ordinary engine; a steam turbine; -- called also rotatory engine.

Rotary pump, a pump in which the fluid is impelled by rotating devices which take the place of reciprocating buckets or pistons.

Rotary shears, shears, as for cloth, metal, etc., in which revolving sharp-edged or sharp-cornered wheels do the cutting.

Rotary valve, a valve acting by continuous or partial rotation, as in the four-way cock.

Share This:Share This: digg.comShare This: ma.gnolia.comShare This: www.stumbleupon.comShare This: del.icio.usShare This: FacebookShare This: favorites.live.comShare This: www.technorati.comShare This: furl.netShare This: myweb2.search.yahoo.comShare This: www.google.com