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actiniform

American  
[ak-tin-uh-fawrm] / ækˈtɪn əˌfɔrm /

adjective

Zoology.

  1. having a radiate form.

actiniform British  
/ ækˈtɪnɪˌfɔːm /

adjective

  1. another word for actinoid

"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 actiniform

First recorded in 1835–45; actin- + -i- + -form

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.