Meaning of hemichordate


Pronunciation: (hem"i-kôr'dāt), [key]
— Zool. Zool.
  1. belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms.
  1. 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.