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actinoid

[ ak-tuh-noid ]

adjective

  1. raylike; radiate.


actinoid

/ 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
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Word History and Origins

Origin of actinoid1

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

Of the lowest among these orders, the Actinoid Polyps, our Actinia or sea-anemone is a good example.

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actinographactinolite