| tache | A circumscribed discoloration of the skin or mucous membrane, such as a macule or freckle. Origin: Fr. Spot (05 Mar 2000) |
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| tache blanche | Gray-white or white, rounded or irregularly shaped, slightly opaque patches or spots that are sometimes observed postmortem in the epicardium, especially in middle-aged or older persons; they result from fibrous thickening, and sometimes hyalinization, of the epicardium; similar lesions may also occur in the visceral layer of the peritoneum. Synonym: macula lactea, macula tendinea, tache blanche, tache laiteuse, tendinous spot, white spot. (05 Mar 2000) |
| tache bleuatre | A bluish stain on the skin caused by the bites of fleas or lice, especially pediculosis pubis. Synonym: blue spot, tache bleuatre. (05 Mar 2000) |
| tache cerebrale | A line of redness resulting from drawing a point across the skin, especially notable in cases of meningitis. Synonym: tache cerebrale, tache meningeale, Trousseau's spot. (05 Mar 2000) |
| tache laiteuse | White plaques of hyalinised fibrous tissue situated in the epicardium overlying the right ventricle of the heart where it is not covered by lung. Synonym: soldier's patches. White macroscopic areas in the omentum, due to accumulation of macrophages and lymphocytes. Synonym: tache laiteuse. (05 Mar 2000) |
| tache meningeale | A line of redness resulting from drawing a point across the skin, especially notable in cases of meningitis. Synonym: tache cerebrale, tache meningeale, Trousseau's spot. (05 Mar 2000) |
| tache noire | Black spot (in French), a small ulcer covered with a black crust at the site of a tick bite, characteristic of several tick-borne rickettsial diseases. (12 Dec 1998) |
| tachetic | Marked by bluish or brownish spots. Origin: Fr. Tache, spot (05 Mar 2000) |
| tachhydrite | <chemical> A hydrous chloride of calcium and magnesium occurring in yellowish masses which rapidly deliquesce upon exposure. It is found in the salt mines at Stassfurt. Origin: Gr. Quick + water. So named from its ready deliquescence. Source: Websters Dictionary (01 Mar 1998) |
| tachina | Origin: NL, fr. Gr, for swift. <zoology> Any one of numerous species of Diptera belonging to Tachina and allied genera. Their larvae are external parasites of other insects. Source: Websters Dictionary (01 Mar 1998) |
| tachistesthesia | An obsolete term for recognition of light flicker. Origin: G. Tachistos, very rapid, from tachys, rapid, + aesthesis, perception (05 Mar 2000) |
| tachistoscope | <instrument> An instrument to determine the shortest time an object must be exposed in order to be perceived. Origin: G. Tachistos, very rapid, fr. Tachys, rapid, + skopeo, to view (05 Mar 2000) |
| tachogram | Record made by a tachometer. Origin: G. Tachos, speed, + gramma, mark (05 Mar 2000) |
| tachograph | A tachometer designed to provide a continuous record of speed or rate. Origin: G. Tachos, speed, + grapho, to write (05 Mar 2000) |
| tachography | The recording of speed or rate. Origin: G. Tachos, speed, + grapho, to write (05 Mar 2000) |