ne.phrid.i.um

n.（名詞）
【復數(shù)】 ne.phrid.i.a[-ô-…]
A tubular excretory organ in many invertebrates, such as mollusks and earthworms.
腎管：許多脊椎動物，比如軟體動物和蚯蚓的管狀排泄器官
The excretory organ of a vertebrate embryo from which the kidney develops.
原腎：脊椎動物胚胎的排泄器官，腎由此發(fā)展而來

來源：
nephr(o)-
nephr(o)-
New Latin -idium [having a small form] from Greek -idion
現(xiàn)代拉丁語 -idium [具有很小形態(tài)] 源自 希臘語 -idion

【引伸】
nephrid.ial
adj.（形容詞）