EXAMPLES | WORD ORIGIN adjective Also u·ni·valved, u·ni·val·vu·lar . [yoo-n uh- val-vy uh-ler] /ˌyu nəˈvæl vyə lər/ (of a shell) composed of a single valve or piece. noun a univalve mollusk or its shell. Origin of univalve
First recorded in
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for univalves Historical Examples of univalves
The first two include
Univalves and Bivalves, the last only Univalves.
Yet, since each of these three
univalves has been this day created, these inferences are deceptive.
The former are
univalves and the latter bivalves having two shells for protection.
Care should be taken not to injure the edge or lip of the mouth of
univalves, or the ligament of the hinge of bivalves.
Beads made from the columell of
univalves have generally a number of distinguishing characteristics. British Dictionary definitions for univalves adjective relating to, designating, or possessing a mollusc shell that consists of a single piece (valve) noun a gastropod mollusc or its shell
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for univalves
1660s (noun and adjective), from
uni- + valve.
Online Etymology Dictionary, © 2010 Douglas Harper
A gastropod, especially one with a single shell, such as a snail, cone, whelk, abalone, or limpet. Univalves belong to the subclass Prosobranchia. Their shells are usually spiral and can hold the whole animal inside. Compare bivalve.
The American Heritage® Science Dictionary
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