[ uhn-juh-luh-tawr-ee, -tohr-ee, uhn-dyuh-, -duh- ]
See synonyms for undulatory on Thesaurus.com
  1. Also un·du·lar. moving in undulations.

  2. having the form or appearance of waves.

Origin of undulatory

First recorded in 1720–30; undulate + -ory1
  • Also un·du·la·tive [uhn-juh-ley-tiv, uhn-dyuh-, -duh-]. /ˈʌn dʒəˌleɪ tɪv, ˈʌn dyə-, -də-/.

Other words from undulatory

  • non·un·du·la·to·ry, adjective

Words Nearby undulatory

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use undulatory in a sentence

  • At Fontana, however, the undulatory shock was replaced by a vertical one.

  • The undulatory theory, now generally accepted, maintains that light is carried by vibrations in ether.

  • Their flight is undulatory like that of the preceding, and all their habits are very similar.

    Bird Guide: Land Birds East of the Rockies | Chester A. (Chester Albert) Reed
  • The woman looped up her veil, festooning it about the undulatory roll of her hat brim.

    The Shadow | Arthur Stringer
  • His mind was still touched into mystery by the spirit housed in that uncouth and undulatory flesh.

    The Shadow | Arthur Stringer

British Dictionary definitions for undulatory


/ (ˈʌndjʊlətərɪ, -trɪ) /

  1. caused by or characterized by waves or undulations

  2. 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