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bivalve

bivalve

7.9
Having two hinged shells, as in clams or oysters
  • adjective
  • /ˈbaɪˌvælv/
translation icon : bivalvo
  • Clams and oysters are examples of bivalve mollusks, known for their two-part shells.

Examples

  • For example, fish may limit bivalve diversity because many freshwater bivalves produce larval stages that require particular fish species as hosts (Hagg and Warren 1998).

    Academic text (2000)
  • The bivalve species found in the bay include various types of edible clams.

  • Mussels are a common type of bivalve that can be found in both freshwater and marine environments.

Synonyms

bivalved
vsbivalve
7.7

Having a shell made of two parts joined by a hinge like a clam or oyster

is the general, widely used term for that shell type
pelecypodous
vsbivalve
  • Archaic
9.9

Relating to animals that have two shells, like clams or oysters

is the common word used for the same shell structure

Antonyms

univalve
  • Specialized
9.7

Having a single shell like a snail

How Many Valves

multivalve
  • Specialized
9.4
bivalve
7.9
univalve
  • Specialized
9.4

Surface Forms

bivalve positive

Morphology

bivalve = valve (transparent) = bi + valve

Adjectival use is the same formation: 'bi-' + 'valve', describing something with two valves; the morphological relation is directly clear.

Etymology

The word bivalve comes from bi- 'two' and valve 'door' and means 'having two hinged shells', so we use it to describe animals like clams and oysters that open and close their two shells.