What is the meaning of actinoid?

noun

  • Any of a series of radioactive elements with atomic numbers 89 through 103.

adjective

  • Having a radial form.
    • usage: "starfish are actinoid-that is, they are radially symmetrical"
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). actinoid. Retrieved September 21, 2026, from http://smartdefine.org/actinoid/definitions/1167268
ChicagoWordNet. 2010. "actinoid" http://smartdefine.org/actinoid/definitions/1167268 (accessed September 21, 2026).
HarvardWordNet 2010, actinoid, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/actinoid/definitions/1167268>.
MLAWordNet. "actinoid" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/actinoid/definitions/1167268>
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