French Etymology From New Latin cētācea, from Latin cētus (“whale”). Pronunciation IPA(key): /se.ta.se/ Audio:(file) Noun cétacé m (plural cétacés) cetacean Adjective cétacé (feminine cétacée, masculine plural cétacés, feminine plural cétacées) cetacean Further reading “cétacé”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012. Anagrams cactée Wikiwand - on Seamless Wikipedia browsing. On steroids.