| isomethadone | 6-(Dimethylamino)-5-methyl-4,4-diphenyl-3-hexanone;a narcotic analgesic. (05 Mar 2000) |
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| isometheptene | N,1,5-Trimethyl-4-hexenylamine;an unsaturated aliphatic sympathomimetic amine with antispasmodic and vasoconstrictor actions. (05 Mar 2000) |
| isometric | 1. Of equal dimensions. 2. In physiology, denoting the condition when the ends of a contracting muscle are held fixed so that contraction produces increased tension at a constant overall length. Compare: auxotonic, isotonic, isovolumic. Origin: iso-+ G. Metron, measure (05 Mar 2000) |
| isometric chart | A chart or graph that displays three dimensions on a plane surface. (05 Mar 2000) |
| isometric contraction | Muscular contractions characterised by increase in tension without change in length. (12 Dec 1998) |
| isometric contraction period | The time between closure of the atrioventricular valves and opening of the semilunar valves. (05 Mar 2000) |
| isometric exercise | Exercise consisting of muscular contractions without movement of the involved parts of the body. (05 Mar 2000) |
| isometric period of cardiac cycle | That period in which the muscle fibres do not shorten although the cardiac muscle is excited and the pressure in the ventricles rises, extending from the closure of the atrioventricular valves to the opening of the semilunar valves (isovolumic constriction) or the reverse (isovolumic relaxation). (05 Mar 2000) |
| isometric relaxation | Decrease in tension of a muscle while the length remains constant due to fixation of the ends. (05 Mar 2000) |
| isometric relaxation period | Early ventricular diastole beginning with closure of the aortic and pulmonic valves and preceding opening of the atrioventricular valves. (05 Mar 2000) |
| isometric ruler | A calibrated scale for eliminating distortion in the measurement of plane surfaces. (05 Mar 2000) |
| isometric tension | Tension generated in a muscle without contraction occurring: cross bridges are being re formed with the same site on the thin filament and the tension (in striated muscle) is proportional to the overlap between thick and thin filaments. (18 Nov 1997) |
| isometric traction | Traction in which the length of the limb does not change. (05 Mar 2000) |
| isometrical | 1. Pertaining to, or characterised by, equality of measure. 2. <chemistry> Noting, or conforming to, that system of crystallization in which the three axes are of equal length and at right angles to each other; monometric; regular; cubic. Cf. Crystallization. Isometric lines, lines representing in a diagram the relations of pressure and temperature in a gas, when the volume remains constant. Isometrical perspective. See Perspective. Isometrical projection, a species of orthographic projection, in which but a single plane of projection is used. It is so named from the fact that the projections of three equal lines, parallel respectively to three rectangular axes, are equal to one another. This kind of projection is principally used in delineating buildings or machinery, in which the principal lines are parallel to three rectangular axes, and the principal planes are parallel to three rectangular planes passing through the three axes. Origin: Iso- + Gr. Measure. Source: Websters Dictionary (01 Mar 1998) |
| isometropia | Equality in refraction in the two eyes. Origin: iso-+ G. Metron, measure, + ops (op-), eye (05 Mar 2000) |
| isometric |
related by an isometry of or involving muscular contraction in which tension increases while length remains constant having equal dimensions or measurements of a crystal system characterized by three equal axes at right angles isometric line: a line connecting isometric points
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| isometric exercise |
isometrics: muscle-building exercises (or a system of musclebuilding exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change)
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| isometropia |
equality of refractive power in the two eyes
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| isomorphous |
having similar appearance but genetically different
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| isometry |
the growth rates in different parts of a growing organism are the same a one-to-one mapping of one metric space into another metric space that preserves the distances between each pair of points; "the isometries of the cube" equality of elevation above sea level
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| isom | muscle-building exercises involving muscular contractions against resistance without movement (the length of the muscle does not change) |
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| isom | having equal dimensions or measurements |
| isom | muscle-building exercises involving muscular contractions against resistance without movement (the length of the muscle does not change) |
| isom | equality of refractive power in the two eyes |
| isom | equality of elevation above sea level |
| isom | (biology) having similar appearance but genetically different |
| isom | (biology) similarity or identity of form or shape or structure |
| isom | (biology) having similar appearance but genetically different |
| isom | (biology) similarity or identity of form or shape or structure |