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actinia

American  
[ak-tin-ee-uh] / ækˈtɪn i ə /

noun

plural

actiniae, actinias

  1. a sea anemone, especially of the genus Actinia.

actinia British  
/ ækˈtɪnɪə /

noun

  1. any sea anemone of the genus Actinia, which are common in rock pools

"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

Etymology

Origin of actinia

From New Latin, dating back to 1740–50; actin-, -ia

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.