Dictionary.com

actinoid

[ ak-tuh-noid ]
/ ˈæk təˌnɔɪd /
Save This Word!

adjective
raylike; radiate.
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?

Origin of actinoid

First recorded in 1840–50; actin- + -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use actinoid in a sentence

British Dictionary definitions for actinoid

actinoid
/ (ˈæktɪˌnɔɪd) /

adjective
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
FEEDBACK