centradiaphanes (sen tradiafanez)

[NL., central (sen'tral), a. [= F. Pr. Sp. Pg. central = It. centrale, L. central is, central ter1.] 1. Pertaining to or constituting the center: as, the central point of a circle; a central country of Europe. Palmyra, central in the desert,.. fell. Words worth, Excursion, viii. 2. Nuclear in constitution or principle; constituting that from which other related things proceed, or upon which they depend: as, the central facts of history; a central idea. The ducal palace of Venice contains the three elements in exactly equal proportions-the Roman, Lombard, and Arab. It is the central building of the world. Ruskin, Stones of Venice, I. 17. The Roman dominion is the central fact in the history of the world. Rome is the lake in which all the streams of older history lose themselves, and out of which all the streams of later history flow. E. A. Freeman, Amer. Lects., p. 312. 3. Pa ing through or near the center or middle; median: as, a central line; the New York Central Railroad. - Central artery and vein of retina, the artery and vein pa ing in the optic nerve to the middle of the optic papilla, where they subdivide. - Central canal. See canal i. - Central capsule. See capsule. Central eclipse, an annular or total eclipse. (See an nular.) It is so named because the centers of the sun and moon appear to coincide. - Central ellipsoid. See ellip soid.-Central force, in mech., a force of attraction or repulsion. - Central ligament, the filum term in ale of the spinal cord. - Central lobe of the brain, the island of Reil; that part of the superficies of the cerebral hemisphere which lies deeply within the beginning of the fi ure of Sylvius. It is triangular in shape, and consists 5 or 6 straight gyri. - Central projection, a represent a tion in perspective. of centrale (sen-trā'lē), n.; pl. central i a (-li-a). [NL., neut. of L. central is, central: see central.] A bone situated in the middle of the typical carpus and tarsus of the higher Vertebrata, between the proximal and distal rows of carpal and tarsal bones. It is often wanting. See cuts under carpus and tarsus. centralisation, centralise, etc. See central i zati on, etc.