[yoo r-uh-kawrd]
noun Zoology.
  1. the notochord of an ascidian or tunicate, more conspicuous in the larva than in the adult and confined chiefly to the caudal region.

Origin of urochord

First recorded in 1875–80; uro-2 + chord1
Related formsu·ro·chor·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for urochord


  1. the notochord of a larval tunicate, typically confined to the tail region
noun, adjective
  1. Also: urochordate (ˌjʊərəʊˈkɔːdeɪt) Another word for tunicate
Derived Formsurochordal, adjective

Word Origin for urochord

C19: from uro- ² + chord, a variant of cord
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012