univalve

American  

[yoo-nuh-valv] / ˈyu nəˌvælv /

adjective

1. having one valve.

2. (of a shell) composed of a single valve or piece.

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noun

1. a univalve mollusk or its shell.

univalve British  

/ ˈjuːnɪˌvælv /

adjective

1. relating to, designating, or possessing a mollusc shell that consists of a single piece (valve)

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noun

1. a gastropod mollusc or its shell

univalve Scientific  

/ yo̅o̅′nĭ-vălv′ /

1. 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.

2. Compare bivalve

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Etymology

Origin of univalve

First recorded in 1655–65; uni- + valve

Example Sentences

A name applied to the shells of the Haliotis—a univalve mollusc found clinging like limpets to rocks; very abundant in Guernsey.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Belcher, Edward, Sir

A large univalve, used as a horn by pilots, fishermen, &c., in fogs: a strombus, triton, or sometimes a murex.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Belcher, Edward, Sir

Fossil wood with Teredo antenautæ is also met with, and pyritous casts of univalve and bivalve shells.

From Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology by Various

Cochleate: spirally twisted like a screw or a univalve shell.

From Explanation of Terms Used in Entomology by Smith, John. B.

I noticed also several univalve and bivalve shells of various sizes.

From Lachesis Lapponica A Tour in Lapland, Volume 1 by Linn?, Carl von