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actinoid

[ak-tuh-noid] /ˈæk təˌnɔɪd/
adjective
1.
raylike; radiate.
Origin
1840-1850
1840-50; actin- + -oid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for actinoid

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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