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a combining form meaning “chorion,” “choroid,” used in the formation of compound words:

chorio- pref.


Read Also:

  • Chorioadenoma

    chorioadenoma cho·ri·o·ad·e·no·ma (kôr’ē-ō-ād’n-ō’mə) n. A benign neoplasm of the chorion, especially one having early hydatidiform mole formation. Also called deciduoma malignum.

  • Chorioadenoma destruens

    chorioadenoma destruens chorioadenoma des·tru·ens (dě-strōō’ənz) n. A hydatidiform mole in which there is an unusual degree of invasion of the myometrium or its blood vessels, causing hemorrhage, necrosis, and occasionally rupture of the uterus.

  • Chorioallantois

    [kawr-ee-oh-uh-lan-toh-is, ‐tois, kohr‐] /ˌkɔr i oʊ əˈlæn toʊ ɪs, ‐tɔɪs, ˌkoʊr‐/ noun, Embryology, Zoology. 1. a vascular, extraembryonic membrane of birds, reptiles, and certain mammals, formed by the fusion of the wall of the chorion with the wall of the allantois. chorioallantois cho·ri·o·al·lan·to·is (kôr’ē-ō’ə-lān’tō-ĭs) n. The highly vascular extraembryonic membrane formed by the fusion of […]

  • Chorioamnionitis

    chorioamnionitis cho·ri·o·am·ni·o·ni·tis (kôr’ē-ō-ām’nē-ə-nī’tĭs) n. Inflammation of the amniotic membranes caused by infection.

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