[ roh-tuh-tawr-ee, -tohr-ee ]
/ ˈroʊ təˌtɔr i, -ˌtoʊr i /


pertaining to or of the nature of rotation: rotatory motion.
rotating, as an object.
passing or following in rotation or succession.
causing rotation, as a muscle.

Origin of rotatory

1745–55; < New Latin rotātōrius, equivalent to Latin rotā(re) (see rotate1) + -tōrius -tory1

Related forms

un·ro·ta·to·ry, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rotatory

British Dictionary definitions for rotatory


less commonly rotative (ˈrəʊtətɪv)

/ (ˈrəʊtətərɪ, -trɪ) /


of, relating to, possessing, or causing rotation

Derived Forms

rotatively, adverb
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

Medicine definitions for rotatory


[ rōtə-tôr′ē ]


Of, relating to, causing, or characterized by rotation.
Occurring or proceeding in alternation or succession.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.