ascidian
[uh-sid-ee-uh n]Zoology
|
noun
any solitary or colonial tunicate of the class Ascidiacea, exhibiting in the larval stage the vertebrate characteristics of a notocord and hollow nerve cord.
adjective
belonging or pertaining to the class Ascidiacea.
Origin of ascidian
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ascidian
Historical Examples of ascidian
The ascidian has only one eye inside its useless brain, while the tadpole and all other vertebrates have two from the very first.
The Evolutionist at LargeGrant Allen
So that in this respect the ascidian larva is nearer to the original type than the tadpole or any other existing animal.
The Evolutionist at LargeGrant Allen
The ascidian when born is a tiny, free-swimming, tadpole-like creature with a slender finned tail.
Elementary Zoology, Second EditionVernon L. Kellogg
Chabry had published in 1887 some interesting results on the Ascidian egg, which strongly supported the Roux-Weismann theory.
Form and FunctionE. S. (Edward Stuart) Russell
The beginning of man an ascidian—his ultimate development as an angel, a pear-shaped, transparent bag.
ascidian
noun
adjective
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