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Showing results for actinoid. Search instead for anginoid.

actinoid

American  
[ak-tuh-noid] / ˈæk təˌnɔɪd /

adjective

  1. raylike; radiate.

actinoid British  
/ ˈæktɪˌnɔɪd /

adjective

  1. having a radiate form, as a sea anemone or starfish

"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 actinoid

First recorded in 1840–50; actin- + -oid

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.