| isometheptene | N,1,5-Trimethyl-4-hexenylamine;an unsaturated aliphatic sympathomimetic amine with antispasmodic and vasoconstrictor actions. (05 Mar 2000) |
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| 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) |
| isomorph | A substance which is similar to another in crystalline form and composition. See: Isomorphous. Source: Websters Dictionary (01 Mar 1998) |
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| isocitrate dehydrogenase |
Isocitrate dehydrogenase, also known as IDH, is an enzyme which participates in the citric acid cycle. It catalyzes the third step of the cycle: the oxidative decarboxylation of isocitrate, producing alpha-ketoglutarate (α-ketoglutarate) and CO2 while converting NAD+ to NADH. ...
Ãâó: en.wikipedia.org/wiki/Isocitrate_dehydrogenase
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| isoelectric focusing |
Isoelectric focusing is a method of separating proteins based on their relative content of acidic and basic residues. This content is represented by a value known as an isoelectric point, or pI. Proteins are introduced into a gel (composed of polyacrylamide, starch, agarose, etc.) which has an established pH gradient or is capable of establishing such a gradient after applying an electrical current. ...
Ãâó: en.wikipedia.org/wiki/Isoelectric_focusing
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| isogamy |
Gametes (in Greek: γαμέτες) —also known as sex cells, germ cells, or spores—are the specialized cells that come together during fertilization (conception) in organisms that reproduce sexually. ...
Ãâó: en.wikipedia.org/wiki/Isogamy
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| isovolume pressure-flow curve |
a curve generated by plotting various values of pressures against the corresponding airflows at a single lung volume. At high lung volumes (approaching total lung capacity), the maximum flow or flow limitation is usually not reached. See illustration.
Ãâó: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| isometric projection |
(n) An axonometric projection in which three of the axes are measured on the same scale and are at the same angle relative to each other. An isometric drawing is less pleasing to the eye than other types of axonometric projections, but it is the most common since it is the easiest to draw.
Ãâó: highered.mcgraw-hill.com/sites/0072322098/student_...
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