Definition of protobranch in English:

protobranch

noun ˈprəʊtə(ʊ)braŋk

Zoology

A bivalve mollusc of the relatively primitive subclass Protobranchia, whose members are characterized by gills having a simple leaflike structure.

adjective ˈprəʊtə(ʊ)braŋk

Zoology

Designating, relating to, or characterized by a type of molluscan gill having a simple, leaflike structure, as in bivalve molluscs of the subclass Protobranchia.

Origin

Late 19th century; earliest use found in American Naturalist. From proto- + -branch, after scientific Latin Protobranchia, subclass name.

Definition of protobranch in US English:

protobranch

nounˈprəʊtə(ʊ)braŋk

Zoology

A bivalve mollusc of the relatively primitive subclass Protobranchia, whose members are characterized by gills having a simple leaflike structure.

adjectiveˈprəʊtə(ʊ)braŋk

Zoology

Designating, relating to, or characterized by a type of molluscan gill having a simple, leaflike structure, as in bivalve molluscs of the subclass Protobranchia.

Origin

Late 19th century; earliest use found in American Naturalist. From proto- + -branch, after scientific Latin Protobranchia, subclass name.

词汇	protobranch
释义	Definition of protobranch in English: protobranch noun ˈprəʊtə(ʊ)braŋk Zoology A bivalve mollusc of the relatively primitive subclass Protobranchia, whose members are characterized by gills having a simple leaflike structure. adjective ˈprəʊtə(ʊ)braŋk Zoology Designating, relating to, or characterized by a type of molluscan gill having a simple, leaflike structure, as in bivalve molluscs of the subclass Protobranchia. Origin Late 19th century; earliest use found in American Naturalist. From proto- + -branch, after scientific Latin Protobranchia, subclass name. Definition of protobranch in US English: protobranch nounˈprəʊtə(ʊ)braŋk Zoology A bivalve mollusc of the relatively primitive subclass Protobranchia, whose members are characterized by gills having a simple leaflike structure. adjectiveˈprəʊtə(ʊ)braŋk Zoology Designating, relating to, or characterized by a type of molluscan gill having a simple, leaflike structure, as in bivalve molluscs of the subclass Protobranchia. Origin Late 19th century; earliest use found in American Naturalist. From proto- + -branch, after scientific Latin Protobranchia, subclass name.
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