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[nahy-duh s] /ˈnaɪ dəs/

noun, plural nidi
[nahy-dahy] /ˈnaɪ daɪ/ (Show IPA)
a nest, especially one in which insects, spiders, etc., deposit their eggs.
a place or point in an organism where a germ or other organism can develop or breed.
noun (pl) -di (-daɪ)
the nest in which insects or spiders deposit their eggs
(pathol) a focus of infection
a cavity in which plant spores develop

“nest, breeding place,” 1742, from Latin nidus “a nest,” from Old Latin *nizdus (see nest (n.)). Figurative use by 1807. Classical plural is nidi.

nidal ni·dal (nīd’l)
Of, relating to, or characteristic of a nidus.

nidus ni·dus (nī’dəs)
n. pl. ni·dus·es or ni·di (-dī)


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  • Nidate

    nidate ni·date (nī’dāt) v. ni·dat·ed, ni·dat·ing, ni·dates To become implanted in the uterus. Used of an early embryo.

  • Nidation

    [nahy-dey-shuh n] /naɪˈdeɪ ʃən/ noun, Embryology. 1. implantation of an embryo in the lining of the uterus. /naɪˈdeɪʃən/ noun 1. (physiol) another name for implantation (sense 2) nidation ni·da·tion (nī-dā’shən) n. The implantation of the early embryo in the uterine mucosa.

  • Nidcd

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