univalve

American  

[yoo-nuh-valv] / ˈju 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

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Example Sentences

See Examples For:

univalve

Although with the Mollusca sexual selection does not seem to have come into play; yet many univalve and bivalve shells, such as volutes, cones, scallops, &c., are beautifully coloured and shaped.

From The Descent of Man and Selection in Relation to Sex, Vol. I by Charles Darwin

These small bodies here represented, which bear a considerable resemblance to the fry of the univalve, or gasteropodous shells above mentioned, are so minute at first as to be just visible to the naked eye.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Sir Charles Lyell

The latter member is marked by a thin limestone band near the top, containing Spirorbis carbonarius, a small marine univalve.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various

Indeed I have heard more than once that the famous "Pâte de Guimauve" owes its healing nutritive character to this despised univalve, which is said to enter largely into its composition.

From Wild Nature Won By Kindness by Elizabeth Brightwen

There appear to be three varieties, spiral, univalve, and bivalve.

From The World and Its People: Book VII Views in Africa by Anna B. Badlam

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