| segmentum internodale | The portion of a myelinated nerve fibre between two successive nodes. Synonym: interannular segment, internode, Ranvier's segment, segmentum internodale. (05 Mar 2000) |
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| segmentum laterale | A delimited part or section of an organ or other structure which lies farthest to the left or right side of the other similar parts or sections. 1) segmentum laterale (hepar); the lateral segment of the left lobe of the liver. 2) segmentum laterale (pulmo dexter); [S 4]; the lateral segment of the middle lobe of the right lung. Synonym: segmentum laterale. (05 Mar 2000) |
| segmentum lingulare inferius | Inferior lingular segment of superior lobe of left lung; between superior lingular segment and oblique fissure. Synonym: segmentum lingulare inferius. (05 Mar 2000) |
| segmentum lingulare superius | Superior lingular segment of the superior lobe of the left lung; lies above inferior lingular segment. Synonym: segmentum lingulare superius. (05 Mar 2000) |
| segmentum mediale | A delimited part or section of an organ or other structure which lies closer or closest to the midline than the other similar parts or sections. 1) segmentum mediale (hepar); the medial segment of the left lobe of the liver. 2) segmentum mediale (pulmo dexter); [S 5]; the medial segment of the middle lobe of the right lung. Synonym: segmentum mediale. (05 Mar 2000) |
| segmentum posterius | A delimited part or section of an organ or other structure which lies in back of or dorsal to the other similar parts or sections; 1) segmentum posterius (hepar); the posterior segment of the right lobe of the liver; 2) segmentum posterius (pulmo dexter); [S 2]; the posterior segment of the superior lobe of the right lung; 3) segmentum posterius (ren); the posterior segment of the kidney; 4) camera vitrea bulbi; vitreous camera; vitreous chamber of eye; the posterior intraocular segment of the eyeball occupied by the vitreous which lies behind the aqueous-filled anterior segment and is separated from it by the lens and zonule. Synonym: segmentum posterius. (05 Mar 2000) |
| segmentum subapicale | An inconstant segment of the inferior lobe of the right and left lungs. Synonym: segmentum subapicale, segmentum subsuperius, subsuperior segment. (05 Mar 2000) |
| segmentum subsuperius | An inconstant segment of the inferior lobe of the right and left lungs. Synonym: segmentum subapicale, segmentum subsuperius, subsuperior segment. (05 Mar 2000) |
| segmentum superius | Apical segment of the superior lobe of the right lung, apical segment of the inferior lobe of the right and left lungs. Synonym: segmentum superius. Synonym: segmentum superius, segmentum apicale, superior segment. (05 Mar 2000) |
| sego | <botany> A liliaceous plant (Calochortus Nuttallii) of Western North America, and its edible bulb; so called by the Ute Indians and the Mormons. Source: Websters Dictionary (01 Mar 1998) |
| segond fracture | <radiology> Vertical avulsion fracture of the proximal lateral tibia associated with ligamentous injury: lateral collateral ligament, ACL (12 Dec 1998) |
| segregate | 1. Separate; select. 2. <botany> Separated from others of the same kind. Origin: L. Segregatus, p. P. Of segregare to separate; pref. Se- aside + grex, gregis, a flock or herd. See Gregarious. <geology> To separate from a mass, and collect together about centers or along lines of fracture, as in the process of crystallization or solidification. Source: Websters Dictionary (01 Mar 1998) |
| segregation | 1. The act of segregating, or the state of being segregated; separation from others; a parting. 2. <geology> Separation from a mass, and gathering about centers or into cavities at hand through cohesive attraction or the crystallizing process. Origin: L. Segregatio: cf. F. Segregation. Source: Websters Dictionary (01 Mar 1998) |
| segregation analysis | In genetics, the enumeration of progeny according to distinct and mutually exclusive phenotypes; used as a test of a putative pattern of inheritance, e.g., mendelian, dominant autosomal, epistatic, age-dependent. (05 Mar 2000) |
| segregation of chromosomes | <cell biology, genetics> The separation of pairs of homologous chromosomes that occurs at meiosis so that only one chromosome from each pair is present in any single gamete. (18 Nov 1997) |