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actinoid

 
Dictionary: ac·ti·noid   (ăk'tə-noid') pronunciation
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adj.
Having a radial form, as a starfish.


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WordNet: actinoid
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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: any of a series of radioactive elements with atomic numbers 89 through 103
  Synonyms: actinide, actinon

The adjective actinoid has one meaning:

Meaning #1: having a radial form

 
 
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actino– (prefix)
actinide series (chemistry)
f-block elements

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more