A dictionary of terms used in medicine and the collateral sciences / by Richard D. Hoblyn.

  • Richard Hoblyn
Date:
1858
Catalogue details

Licence: Public Domain Mark

Credit: A dictionary of terms used in medicine and the collateral sciences / by Richard D. Hoblyn. Source: Wellcome Collection.

    672/692 (page 644)
    5. Visits interruptus (internimpo, to interfere with). Broken, in- terrupted vision ; a state of vision in which the continuity of an object is broken. 6. Visas lucidus, or phoiopsia (</<aj9, (/)uitos, light, cii/^ic, siglit). Luminous vision, in which flashes of light appear to pass before the eyes, when the eyelids are shut, particulnrly in the dark. This is the marmari/ffe (ixapfiaouyi), dazzling light) of Hippocrates. 7. Visus muscarum, or nti/odesopsia (/nvTu, musca, a fly, 6>]/is, visus, sight). The appearance of flies,-&c., floating before the eyes. A single black speck is called scotoma (o-kotos, darkness); the more moving substances are termed musca nolituntcs or momhcs volantes, 8. Visus nehulosus (nebula, a cloud). Misty, clouded vision. 9. Visus reticulatus (rete, a net). A gauzy, net-like appearance of objects. VITA PROPRIA. A term applied by Blumenbach to the peculiar power by which the motions of the iris and of some other parts are determined. The expression, however, gives no idea of the facts. VI'TAL AIR. The name applied by Condonet to oxvgen gas. VITE'LLICLE {uUdlicalus, a little yelk). The little'yelk-bag, or the bag containing that part of the yelk which has not been converted into the trerm-mass and embryo, in man, it is the umhilical vesicle. VITE'LLINE DUCT. The name given to the constricted part at which the vitellicle is continued into the wall of the intestinal canal. VITE'LLO-INTESTI'NAL DUCT. A wide duct by means of which the nutritive substance of the yelk enters the alimentary canal for the nutrition of the embryo. VITE'LLUS OVl. The yelk of egg ; a kind of yellow emulsion, consisting of oil suspended in water by means of albumen, and inclosed in a sack called the yelk-bag; principally employed for rendering oils and balsams miscible with water. VI'TES {vitis, a vine). The Vine tribe of Dicotyledonous plants. Climbing shrubs with tumid joints, and leaves stipulate ; flowers poly- petalous, on ramose peduncles; stome?2shypogynous; ovarium ■2-celled; fruit baccate ; seeds albuminous Vilis vinifera. Common Grape-vine. Various parts of this plant have been employed in medicine under various names : thus, the leaves are t.triae& pampini; thecirrhi or tendrils, capi eoli; the tender shoots, palmites; the ripe grape, ma; the dried grape or raSsm, uva passa; the juice or sap of the ripe grape, lacryma ; that of the unripe grape, omphacium, or commonly agresta. VITILl'GO (vitulus, a calf). Leuce. A synonym of the lupxis non exedens. The veal-skin appearance relates to the inside of the skin. The white and glistening appearance, bearing some resem- blance to the flesh of calves {viluli) seems to have given rise to the generic term. Vitiligo alba is a svnonym of Ele/ihantiat,is anwsthetica. VI'TREOUS BODY (wVnm,'glass). Vitreous humor. A trans- parent mass, resembling melted glass, occupying the globe of the eye, and inclosed in the hyaloi'd membrane. VI I'RIOXIC NAPHTHA. NapMlux vitrioli. A name given by the Germans to sulphuric ether. VITRIFICA'TION (vilrum, glass,^, to become). The conversion of a substance, as silica, &c., into glass.