| metaplastic polyp | A benign small sessile polyp of the large bowel showing lengthening and cystic dilation of mucosal glands; also applied to non-neoplastic gastric mucosal polyp's. Synonym: metaplastic polyp. (05 Mar 2000) |
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| metaplexus | The choroid plexus in the fourth ventricle of the brain. Origin: meta-+ L. Plexus, an interweaving (05 Mar 2000) |
| metapode | <zoology> The posterior division of the foot in the Gastropoda and Pteropoda. Origin: NL. Metapodium, from Gr. Behind +, dim. Of, foot. Source: Websters Dictionary (01 Mar 1998) |
| metapodial | <anatomy> Of or pertaining to the metapodialia, or to the parts of the limbs to which they belong. Source: Websters Dictionary (01 Mar 1998) |
| metapodiale | Origin: NL. See Metapode. <anatomy> One of the bones of either the metacarpus or metatarsus. Source: Websters Dictionary (01 Mar 1998) |
| metapodium | Origin: NL. <zoology> Same as Metapode. Source: Websters Dictionary (01 Mar 1998) |
| metapophysis | Origin: NL. See Meta-, and Apophysis. <anatomy> A tubercle projecting from the anterior articular processes of some vertebrae; a mammillary process. Source: Websters Dictionary (01 Mar 1998) |
| metapore | Rarely used term for apertura mediana ventriculi quarti. Origin: meta-+ G. Poros, pore (05 Mar 2000) |
| metaprotein | Nondescript term for a derived protein obtained by the action of acids or alkalies, soluble in weak acids or alkalies but insoluble in neutral solutions; e.g., albuminate. (05 Mar 2000) |
| metaproterenol sulfate | 3,5-Dihydroxy-alpha-[(isopropylamino)methyl]benzyl alcohol sulfate;a sympathomimetic bronchodilator used for the treatment of bronchial asthma and in chronic obstructive lung disease. It has relatively greater effect on b2-adrenergic receptors than b1, conferring some selectivity in relaxing bronchiolar smooth muscle as compared with cardiac stimulation. Synonym: orciprenaline sulfate. (05 Mar 2000) |
| metapsychology | 1. A systematic attempt to discern and describe what lies beyond the empirical facts and laws of psychology, such as the relations between body and mind, or concerning the place of the mind in the universe. 2. In psychoanalysis, or psychoanalytic metapsychology, psychology concerning the fundamental assumptions of the freudian theory of the mind, which entail five points of view: 1) dynamic, concerning psychologic forces; 2) economic, concerning psychologic energy; 3) structural, concerning psychologic configurations; 4) genetic, concerning psychologic origins; 5) adaptive, concerning psychologic relations with the environment. Origin: G. Meta, beyond, transcending, + psychology (05 Mar 2000) |
| metapterygium | <anatomy> The posterior of the three principal basal cartilages in the fins of fishes. Metapteryg"ial. Origin: NL, fr. Gr. After + fin. Source: Websters Dictionary (01 Mar 1998) |
| metapyretic | Synonym: postfebrile. Origin: meta-+ G. Pyretos, fever (05 Mar 2000) |
| metapyrocatechase | <enzyme> An oxidoreductase oxidizing catechol, with oxygen, to 2-hydroxymuconate saemialdehyde. Synonym: metapyrocatechase. (05 Mar 2000) |
| metaraminol | <chemical> Alpha-(1-aminoethyl)-3-hydroxybenzenemethanol. An adrenergic agonist that acts predominantly at alpha adrenergic receptors and also stimulates the release of norepinephrine. It has been used primarily as a vasoconstrictor in the treatment of hypotension. Pharmacological action: adrenergic alpha-agonists, adrenergic agents, sympathomimetic, vasoconstrictor agents. Chemical name: Benzenemethanol, alpha-(1-aminoethyl)-3-hydroxy-, (R-(R*,S*))- (12 Dec 1998) |