nidusn.
英 'naɪdəs | 美 'naɪdəs
中文n. [医] 病灶；巢；孳生地；发源地
词根词源
nidus (n.)"nest, breeding place," 1742, from Latin nidus "a nest," from Old Latin *nizdus (see nest (n.)). Figurative use by 1807. Classical plural is nidi.
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