See central air conditioning (central air)
continental North America, S of Mexico, usually considered as comprising Guatemala, Belize, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama. 227,933 sq. mi. (590,346 sq. km). noun an isthmus joining the continents of North and South America, extending from the S border of Mexico to the NW border of Colombia and consisting of Belize, Guatemala, […]
- Central amputation
central amputation cen·tral amputation (sěn’trəl) n. An amputation in which the scar runs at or near the center of the stump.
an angle formed at the center of a circle by two radii. noun an angle whose vertex is at the centre of a circle central angle (sěn’trəl) An angle formed by two rays from the center of a circle, with the center forming the vertex.
- Central artery of retina
central artery of retina n. The branch of the ophthalmic artery that penetrates the optic nerve behind the eye, enters the eye at the optic papilla in the retina, and divides into superior and inferior temporal and nasal branches.