bivalve

名词 bivalve:

1. marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together
   同义词：pelecypod, lamellibranch

形容词 bivalve:

1. used of mollusks having two shells (as clams etc.)
   同义词：bivalved

bi.valve

n.（名词）
A mollusk, such as an oyster or a clam, that has a shell consisting of two hinged valves.
双壳类：一种软体动物，如牡蛎或蛤，有由两个开合的瓣组成贝壳的动物
adj.（形容词）
Having a shell consisting of two hinged valves.
双瓣壳的：有由两个开合的瓣组成贝壳的
Consisting of two similar separable parts.
由两相似分开的部分组成的

【引伸】
bi.valved.
adj.（形容词）