| Cotunnius, Domenico | <person> Italian anatomist, 1736-1822. See: Cotunnius' aqueduct, Cotunnius' canal, Cotunnius disease, Cotunnius' liquid, Cotunnius' space, aqueductus cotunnii, liquor cotunnii. (05 Mar 2000) |
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| coturnix | <ornithology> A genus of birds (family phasianidae) containing the common european and other old world quails. (12 Dec 1998) |
| cotyle | <anatomy> Any cup-shaped structure. Synonym: acetabulum. Origin: G. Kotyle, anything hollow, the cup or socket of a joint (05 Mar 2000) |
| cotyledon | <botany> Modified leaf (seed leaf), found as part of the embryo in seeds, involved in either storage or absorption of food reserves. Dicotyledonous seeds contain two, monocotyledonous seeds only one. May appear above ground and show photosynthetic activity in the seedling. (18 Nov 1997) |
| cotyledonary placenta | <plant biology> A placenta in which the substance is divided into lobes or cotyledons. (05 Mar 2000) |
| Cotylogonimus | <zoology> A group of heterophyid flukes, now properly included in the genus Heterophyes. Origin: G. Kotyle, cup, + gonimos, productive (05 Mar 2000) |
| cotyloid | 1. Cup-shaped; cuplike. 2. Relating to the cotyloid cavity or acetabulum. Origin: G. Kotyle, a small cup, + eidos, appearance (05 Mar 2000) |
| cotyloid cavity | <anatomy> The hollow, cuplike portion of the pelvis into which the head of the thigh bone (femur) fits. <zoology> Also, in entomology, the leg socket on an insect's abdomen or thorax. (12 Mar 1998) |
| cotyloid joint | A multiaxial synovial joint in which a more or less extensive sphere on the head of one bone fits into a rounded cavity in the other bone, as in the hip joint. Synonym: articulatio spheroidea, articulatio cotylica, cotyloid joint, enarthrodial joint, enarthrosis, socket joint, spheroid articulation, spheroid joint. (05 Mar 2000) |
| cotyloid ligament | A fibrocartilaginous rim attached to the margin of the acetabulum of the hip bone. Synonym: labrum acetabulare, acetabular lip, circumferential cartilage, cotyloid ligament, ligamentum cotyloideum. (05 Mar 2000) |
| cotyloid notch | A gap in the inferior the margin of the acetabulum. Synonym: incisura acetabuli, cotyloid notch. (05 Mar 2000) |
| cotype | <zoology> A term formerly used for either syntype or paratype. (09 Jan 1998) |