单词 | nephridium |
释义 | ne·phrid·i·um (nə-frĭdē-əm) n. pl. ne·phrid·i·a (-ē-ə) 1. A tubular excretory organ in many invertebrates, such as mollusks and earthworms. 2. The excretory organ of a vertebrate embryo from which the kidney develops. [NEPHR(O)- + Latin -idium, diminutive suff. (from Greek -idion).] ne·phridi·al adj. |
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