urochord Meaning, Definition & Usage

  1. noun primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva
    urochordate; tunicate.
  2. noun a notochord of a larval tunicate typically confined to the caudal region

WordNet

U"ro*chord noun
Etymology
2d uro- + chord.
Definitions
  1. (Zoöl.) The central axis or cord in the tail of larval ascidians and of certain adult tunicates. Written also urocord.

Webster 1913