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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

Resembling a ray especially of a radially symmetrical animal

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Usage examples (5)
  • Starfish are actinoid--that is, they are radially symmetrical
  • Far more entertaining would be a tie-in with Los Alamos, and the Metallurgist Chef explaining the culinary wonders of the actinoid series, and why the Oppenheimer Diet...
  • There are fifteen actinoid (rare earth) elements from which fissile isotopes can be produced; uranium and thorium are the only naturally occurring actinoids.
  • Linnaeus necessitated the breaking up of that class into several very distinct classes, so more careful investigation requires the breaking up of Cuvier's "Radiata" (which...
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