bivalve

1 of 2

adjective

bi·​valve ˈbī-ˌvalv How to pronounce bivalve (audio)
: being or having a shell composed of two valves

bivalve

2 of 2

noun

: any of a class (Bivalvia synonym Pelecypoda) of typically marine mollusks (such as clams, oysters, or scallops) that have a 2-valved hinged shell, are usually filter feeders, and lack a distinct head

Examples of bivalve in a Sentence

Noun clams, mussels, oysters, and other bivalves
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
The town’s big, bivalve-themed bash, Wellfleet Oyster Fest, happens annually on the weekend after Columbus Day (Oct. 19 and 20 this year) along Main Street. BostonGlobe.com, 10 Oct. 2019 Deep-sea wood borers (Xylophaga, a genus of bivalve mollusks) take over where shallow water gribbles and shipworms left off. Brian Payton, Smithsonian, 9 Feb. 2018
Noun
Native to rivers and creeks in China and Southeast Asia, the bivalves have appeared in waterways elsewhere in Asia as well as South American countries, including Brazil, Argentina, Uruguay and Paraguay. Ian James, Los Angeles Times, 6 Nov. 2024 One such assessment, published Nature in 2021, found that seaweed and bivalves, like mussels and oysters, have the lowest environmental footprint of all aquaculture foods. Kenny Torrella, Vox, 7 Dec. 2018 See all Example Sentences for bivalve 

Word History

First Known Use

Adjective

1661, in the meaning defined above

Noun

1683, in the meaning defined above

Time Traveler
The first known use of bivalve was in 1661

Dictionary Entries Near bivalve

Cite this Entry

“Bivalve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bivalve. Accessed 3 Dec. 2024.

Kids Definition

bivalve

1 of 2 adjective
bi·​valve ˈbī-ˌvalv How to pronounce bivalve (audio)
: having or being a shell composed of two movable valves
a bivalve mollusk

bivalve

2 of 2 noun
: any of a class of typically marine mollusks (as clams, oysters, and scallops) that have a shell made up of two parts joined by a hinge, are usually filter feeders, and lack a distinct head

Medical Definition

bivalve

1 of 2 adjective
bi·​valve ˈbī-ˌvalv How to pronounce bivalve (audio)
variants also bivalved
: having or consisting of two corresponding movable pieces suggesting the shells of mollusks
a bivalve speculum
a bivalve cast

bivalve

2 of 2 transitive verb
bivalved; bivalving
: to split (a cast) along one or two sides (as to relieve pressure)

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