| mesaraic | <anatomy> Mesenteric. Origin: Gr. Mesentery; middle + flank. Source: Websters Dictionary (01 Mar 1998) |
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| mesareic | Mesaraic Synonym: mesenteric. Origin: G. Mesaraion, mesentery, fr. Mesos, middle, + araia, flank, belly (05 Mar 2000) |
| mesarteritis | Inflammation of the middle (muscular) coat of an artery. Origin: mes-+ arteritis (05 Mar 2000) |
| mesaticephalic | <anatomy> Having the ratio of the length to the breadth of the cranium a medium one; neither brachycephalic nor dolichocephalic. Origin: Gr. Midmost + E. Cephalic. Source: Websters Dictionary (01 Mar 1998) |
| mesaticephalous | <anatomy> Mesaticephalic. Source: Websters Dictionary (01 Mar 1998) |
| mesatipellic | Mesatipelvic Denoting an individual with a pelvic index between 90 and 95; the superior strait has a round appearance, with the transverse diameter longer than the anteroposterior by 1 cm or less. Origin: G. Mesatos, midmost, + pellis, a bowl (pelvis) (05 Mar 2000) |
| mesatipellic pelvis | An obsolete term for one in which the anteroposterior and transverse diameters are equal or the transverse diameter is not more than 1 cm longer than the anteroposterior diameter. Synonym: round pelvis. (05 Mar 2000) |
| mesaxon | The plasma membrane of the neurolemma that is folded in to surround a nerve axon. In electron micrographs this double layer resembles a mesentery in appearance. (05 Mar 2000) |
| mescal buttons | The dried slices of the cactus Lophophora williamsii containing mescaline and related alkaloids. (05 Mar 2000) |
| mescaline | <chemical> 3,4,5-trimethoxyphenethylamine. Hallucinogenic alkaloid isolated from the flowering heads (peyote) of lophophora (formerly anhalonium) williamsii, a mexican cactus used in indian religious rites and as an experimental psychotomimetic. Among its cellular effects are agonist actions at some types of serotonin receptors. It has no accepted therapeutic uses although it is legal for religious use by members of the native american church. Pharmacological action: hallucinogens, serotonin agonists. Chemical name: Benzeneethanamine, 3,4,5-trimethoxy- (12 Dec 1998) |
| mesectic | An obsolete term denoting a specimen of blood that has a normal percentage saturation of oxygen at any given pressure. Origin: mes-+ G. Echo, to have (05 Mar 2000) |
| mesectoderm | 1. Cells in the area around the dorsal lip of the blastopore where mesoderm and ectoderm undergo a process of separation. 2. That part of the mesenchyme derived from ectoderm, especially from the neural crest in the cephalic region in very young embryos. Synonym: ectomesenchyme. Origin: mes-+ ectoderm (05 Mar 2000) |
| mesembryanthemum | <botany> A genus of herbaceous or suffruticose plants, chiefly natives of South Africa. The leaves are opposite, thick, and feshy. The flowers usually open about midday, whence the name. Origin: NL, fr. Gr. Midday + flower. Source: Websters Dictionary (01 Mar 1998) |
| mesencephalic | <anatomy> Of or pertaining to the mesencephalon or midbrain. Source: Websters Dictionary (01 Mar 1998) |
| mesencephalic flexure | The sharp, ventrally concave bend in the developing midbrain of the embryo. Synonym: cerebral flexure, cranial flexure, mesencephalic flexure. (05 Mar 2000) |