| tiger heart | A fatty degenerated heart in which the fat is disposed in the form of broken stripes in the subendocardial myocardium. (05 Mar 2000) |
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| water tiger | <zoology> A diving, or water, beetle, especially the larva of a water beetle. Source: Websters Dictionary (01 Mar 1998) |
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| tiger | 1. A very large and powerful carnivore (Felis tigris) native of Southern Asia and the East Indies. Its back and sides are tawny or rufous yellow, transversely striped with black, the tail is ringed with black, the throat and belly are nearly white. When full grown, it equals or exceeds the lion in size and strength. Synonym: royal tiger, and Bengal tiger. 2. A ferocious, bloodthirsty person. "As for heinous tiger, Tamora." (Shak) 3. A servant in livery, who rids with his master or mistress. 4. A kind of growl or screech, after cheering; as, three cheers and a tiger. 5. A pneumatic box or pan used in refining sugar. American tiger. <zoology> Any one of several species of wild cats of moderate size with dark transverse bars or stripes somewhat resembling those of the tiger. <botany> Tiger flower, the spotted hyena (Hyaena crocuta). Tiger wood, the variegated heartwood of a tree (Machaerium Schomburgkii) found in Guiana. Origin: OE. Tigre, F. Tigre, L. Tigris, Gr. Tigris; probably of Persian origin; cf. Zend tighra pointed, tighri an arrow, Per. Tir; perhaps akin to E. Stick, v.t.; probably so named from its quickness. Source: Websters Dictionary (01 Mar 1998) |
| tiger-eye | <chemical> A siliceous stone of a yellow colour and chatoyant luster, obtained in South Africa and much used for ornament. It is an altered form of the mineral crocidolite. See Crocidolite. Source: Websters Dictionary (01 Mar 1998) |
| tiger-foot | <botany> Same as Tiger's-foot. Source: Websters Dictionary (01 Mar 1998) |
| tiger's-foot | <botany> A name given to some species of morning-glory (Ipomoea) having the leaves lobed in pedate fashion. Source: Websters Dictionary (01 Mar 1998) |
| abnormal heart chamber dimensions | <radiology> Left ventricular volume overload, left ventricular hypertrophy, right ventricular volume overload, right ventricular hypertrophy, fixed subvalvular aortic stenosis, hypoplastic left/right ventricle; common ventricle, congestive cardiomyopathy (12 Dec 1998) |
| Abrams' heart reflex | A contraction of the myocardium when the skin of the precordial region is irritated. (05 Mar 2000) |
| american heart association | A voluntary organization concerned with the prevention and treatment of heart and vascular diseases. (12 Dec 1998) |
| apex of heart | The blunt extremity of the heart formed by the left ventricle. See: apex beat. Synonym: apex cordis, vertex cordis. (05 Mar 2000) |
| armored heart | Calcareous deposits in the pericardium due to subacute or chronic pericarditis. Synonym: panzerherz. (05 Mar 2000) |
| armor heart | Extensive to complete calcification (rarely ossification) of the pericardium usually producing constrictive pericarditis. (05 Mar 2000) |
| artificial heart | A mechanical pump used to replace the function of a damaged heart, either temporarily or as a permanent prosthesis. (05 Mar 2000) |
| artificial heart valve | <cardiology> A synthetic or porcine (pigskin) valve surgically placed into the heart to replace a defective or malfunctioning valve. The aortic and mitral valves are the most frequently replaced with artificial valves. (27 Sep 1997) |
| athlete's heart | A more or less loose designation for cardiac findings in healthy athletes that would be or could be abnormal in patients with disease, including atrioventricular blocks, left ventricular hypertrophy and, sometimes, benign arrhythmias and atrioventricular blocks. (05 Mar 2000) |
| athletic heart | Hypertrophy of the heart supposedly due to systematic athletic conditioning. (05 Mar 2000) |