rotary
UK /ˈɹəʊ.tə.ɹi/ · US /ˈɹoʊ.tə.ɹi/ adjective, noun
Forms rotaries
- adjective Capable of rotation. “A rotary engine revolves the heads rather than having pistons go back and forth.”
- noun (New England, Atlantic Canada) A roundabout, traffic circle.
- noun (chiefly with initial capital) Any of the clubs making up the international Rotary International movement for community service.
Synonyms
traffic circle circle roundabout synchronous converter rotary converter circular orbitual
Etymology
Attested mid 18th century, from Medieval Latin rotarius, from Latin rota (“wheel”).
Webster’s 1913
- adjective Turning, as a wheel on its axis; pertaining to, or resembling, the motion of a wheel on its axis; rotatory; as, rotary motion.
Etymology [L. rota a wheel. See Roll, v., and cf. barouche, Rodomontade, Roué, Round, a., Rowel.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “rotary”, CC BY-SA 4.0. Details