[ roh-tuh-ree ]
See synonyms for: rotaryrotaries on

  1. turning or capable of turning around on an axis, as a wheel.

  2. taking place around an axis, as motion.

  1. having a part or parts that turn on an axis, as a machine.

noun,plural ro·ta·ries.
  1. a rotary device or machine.

  2. Chiefly Northeastern U.S. traffic circle.

  1. Also called rotary converter. Electricity. synchronous converter.

  2. (initial capital letter) Rotary Club.

Origin of rotary

1725–35; <Medieval Latin rotārius (adj.), equivalent to Latin rot(a) wheel + -ārius-ary

Other words from rotary

  • un·ro·ta·ry, adjective

Words Nearby rotary Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use rotary in a sentence

British Dictionary definitions for rotary


/ (ˈrəʊtərɪ) /

  1. of, relating to, or operating by rotation

  2. turning or able to turn; revolving

nounplural -ries
  1. a part of a machine that rotates about an axis

  2. US and Canadian a roundabout (for traffic)

Origin of rotary

C18: from Medieval Latin rotārius, from Latin rota a wheel

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012