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单词 nephridium
释义

nephridium/niʹfridi·əm/ noun (pl nephridia /-di·ə/)

a tubular glandular organ for excreting waste matter, characteristic of various invertebrate animals, e.g. earthworms

an excretory structure, esp a nephron

nephridial adj
[scientific Latin nephridium, dimin. of Greek nephros kidney]
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