Cetacean Definition
 sĭ-tāshən 
    noun
  
 In some systems of classification, any of an order (Cetacea) of nearly hairless, fishlike water mammals lacking external hind limbs but having paddlelike forelimbs, including whales, porpoises, and dolphins.
 Webster's New World 
    adjective
  
 Of the cetaceans.
 Webster's New World 
Synonyms: 
  Other Word Forms of Cetacean
Noun
Singular:
 cetaceanPlural:
 cetaceansFind Similar Words
Find similar words to cetacean using the buttons below.