Dictionary![]() ![]() hem•i•chor•datePronunciation: (hem"i-kôr'dāt), [key] Zool. —adj. belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms. —n. a hemichordate animal, having a vertebratelike hollow nerve cord and an echinodermlike larval stage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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