[ uhn-juh-luh-tawr-ee, -tohr-ee, uhn-dyuh-, -duh- ]
/ ˈʌn dʒə ləˌtɔr i, -ˌtoʊr i, ˈʌn dyə-, -də- /


Also un·du·lar. moving in undulations.
having the form or appearance of waves.
Also un·du·la·tive [uhn-juh-ley-tiv, uhn-dyuh-, -duh-] /ˈʌn dʒəˌleɪ tɪv, ˈʌn dyə-, -də-/.

Origin of undulatory

First recorded in 1720–30; undulate + -ory1

Related forms

non·un·du·la·to·ry, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for undulatory

British Dictionary definitions for undulatory


/ (ˈʌndjʊlətərɪ, -trɪ) /


caused by or characterized by waves or undulations
having a wavelike motion or form

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