Acantha

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Acantha \A*can"tha\, n. [Gr. ? thorn, fr. ? point. See {Acute}.]
     1. (Bot.) A prickle.
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     2. (Zool.) A spine or prickly fin.
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     3. (Anat.) The vertebral column; the spinous process of a
        vertebra. --Dunglison.
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