heteracanth

Heteracanth

Het"er*a*canth\, a. [Hetero- + Gr. ? a spine.] (Zo["o]l.) Having the spines of the dorsal fin unsymmetrical, or thickened alternately on the right and left sides.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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