radiolarian
[rey-dee-oh-lair-ee-uh n]
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noun
any minute, marine protozoan of the class Radiolaria, or, in some classification schemes, the superclass Actinopoda, having an amebalike body with radiating, filamentous pseudopodia and a usually elaborate outer skeleton.
Origin of radiolarian
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for radiolarian
Historical Examples of radiolarian
Most of these Radiolarian marls appear to date from the middle Tertiary (Miocene) period, and to be deep-sea formations.
We unite here all these skeletonless Radiolarian colonies into one single genus Collozoum, constituted in my Monograph (p. 522).
In several cases the character of the Radiolarian fauna at different depths presented characteristic differences.
A larger number of new forms has been found in the Radiolarian ooze collected by the Challenger, and others fossil in Barbados.
This remarkable species is the oldest known skeleton of a Radiolarian, a figure of it being given in 1838, loc.
radiolarian
noun
Word Origin for radiolarian
C19: from New Latin Radiolaria, from Late Latin radiolus little sunbeam, from Latin radius ray, radius
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radiolarian
[rā′dē-ō-lâr′ē-ən]
The American Heritage® Science Dictionary
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