[ yoo r-uh-kawrd ]
/ ˈyʊər əˌkɔrd /

noun Zoology.

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 forms

u·ro·chor·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for urochord


/ (ˈjʊərəʊˌkɔːd) /


the notochord of a larval tunicate, typically confined to the tail region

noun, adjective

Also: urochordate (ˌjʊərəʊˈkɔːdeɪt) Another word for tunicate

Derived Forms

urochordal, 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