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[kawr-ee-on, kohr-] /ˈkɔr iˌɒn, ˈkoʊr-/

Embryology. the outermost of the extraembryonic membranes of land vertebrates, contributing to the formation of the placenta in the placental mammals.
Zoology. the membrane around the eggs of certain insects, secreted by cells of the ovary.
the outer of two membranes that form a sac around the embryonic reptile, bird, or mammal: contributes to the placenta in mammals See also amnion

“outer membrane of the fetus,” 1540s, medical Latin, from Greek khorion “membrane enclosing the fetus, afterbirth,” perhaps from PIE *ghere- “gut, entrail” (see yarn).

chorion cho·ri·on (kôr’ē-ŏn’)
The outer membrane enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta.
cho’ri·on’ic (-ŏn’ĭk) adj.
The outer membrane that encloses the embryo of a reptile, bird, or mammal. In mammals, the chorion contributes to the development of the placenta.


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  • Choriamb

    [kawr-ee-amb, -am, kohr-] /ˈkɔr iˌæmb, -ˌæm, ˈkoʊr-/ noun, Prosody. 1. a foot of four syllables, two short between two long or two unstressed between two stressed. /ˈkɒrɪˌæmb/ noun (pl) -ambs, -ambi (-ˈæmbaɪ) 1. (prosody) a metrical foot used in classical verse consisting of four syllables, two short ones between two long ones (– ◡ ◡ […]

  • Choriambus

    [kawr-ee-am-buh s, kohr-] /ˌkɔr iˈæm bəs, ˌkoʊr-/ noun, plural choriambi [kawr-ee-am-bahy, kohr-] /ˌkɔr iˈæm baɪ, ˌkoʊr-/ (Show IPA), choriambuses. 1. .

  • Choric

    [kawr-ik, kohr-] /ˈkɔr ɪk, ˈkoʊr-/ adjective 1. of, relating to, or written for a . /ˈkɒrɪk/ adjective 1. of, like, for, or in the manner of a chorus, esp of singing, dancing, or the speaking of verse adj. 1749, from Latin choricus, from Greek khorikos, from khoros (see chorus).

  • Chorine

    [kawr-in, kohr-een] /ˈkɔr ɪn, ˈkoʊr in/ noun 1. a . n. “chorus girl,” 1924, from chorus + fem. ending -ine.

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