from the GNU version of the Collaborative International Dictionary of English
- plural proper n. Same as tunicata.
from The Century Dictionary and Cyclopedia
- The tunicates or ascidians regarded as a branch of Chordata, correlated with Hemichorda, Cephalochorda, and Craniata: same as Ascidia, 1: so called from the possession, permanently or transiently, of a urochord.
- Provided with a urochord; urochordate; of or pertaining to the urochord or the Urochorda. Compare notochordal, parachordal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. tunicates
Sorry, no etymologies found.
Urochorda = the ascidians, or sea-squirts, certain forms of life only recently recognised as relatives of the vertebrata.