(in former classifications) any coelenterate of the group Acalephae, including the sea nettles and jellyfishes.

Also ac·a·lephe [ak-uh-leef] /ˈæk əˌlif/.

Origin of acaleph

1700–10; < New Latin acalepha < Greek akalḗphē stinging nettle, sea anemone Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of acaleph

British Dictionary definitions for acaleph



obsolete any of the coelenterates of the former taxonomic group Acalephae, which included the jellyfishes

Word Origin for acaleph

C18: from New Latin, from Greek akalēphē a sting
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