Wassermann v

Stedman's Medical Dictionary: A Practical Medical Dictionary · 1920 · p. 38
Wa ermann, Berlin bacteriologist, *i866.] W. test. W. se'rum-nu'trose a'gar see under agar. W. test, a diagnostic test for syphilis, based upon the theory of complement fixation. Measured quantities of extract from the liver and spleen of a syphilitic fetus (representing the antigen) and of the blood-serum of the person to be tested are mixed in a test-tube, and some fresh normal guinea-pig serum (containing the complement) added; after incubation at body temperature about an hour the contents of this tube are added to a mixture of the red blood-cells of sheep or other animal, suspended in physiological saline solution, and of the serum of a rabbit which has been immunized to these particular red cells; if the serum mixed with the extract of syphilic organs in the first test-tube is from a syphilitic individual, no hemolysis of the red blood-cells in the second tube will occur after incubation for one hour. See Noguchi's* rtOSiiKMAIMIM KiiACllON provoc'ative W. t., the employment of the W. test one or two days up to one or two weeks after the administration of salvarsan or neo salvarsan; the result may then be positive when before the giving of salvarsan it was negative. a ermann-Uhlenhuth blood-test (vahs'er-mahnoolen-hoot). Uhlenhuth's* blood-test. iste [L. vasiare, to empty, to destroy.] i. To emaciate, to grow thin. 2. Excrementitious material. A ister (wast'er). i. marantic infant, a. An animal, usually a cow, affected with tuberculosis and losing flesh. isting(wast'ing). Emaciation, w. palsy or paral'- ysis, progre ive muscular atrophy. itch'maker's cramp. A profe ional neurosis consisting in (i) spasm of the orbicularis palpebra rum muscle, from holding the lens to the eye; (2) spasm of the muscles of the hand in attempting the delicate movements of watch repairing. A Iter (waw'ter) [A.S. wester.] i. clear, odorle , tastele liquid, HjO, solidifying at 32° F. (0° C. and R.), and boiling at 212"" F. (100° C, 80° R.) It is regarded as a mixture, of varying. molecular complexity, of units having the formula OH2. Water is present in all animal and vegetable ti ues and in nearly all other substances it is also a solvent of more substances than any other liquid, n. The pharmacopeial preparation, aqua.* 3. The urine, acid'ulous w., carbonic w., one which contains a considerable amount of carbonic acid in solution. a lOca line w,, one which contains appreciable amounts of the bicarbonates of calcium, lithium, pota ium, or sodium. bro'mine w., one containing' the bromides of magnesium, pota ium, or sodium in therapeutic amounts, cal'cic w., one containing appreciable quantities of calcium salts in solution, cap'- illary w., water filling the interstices of a structure, but not held in contact with the individual units by molecular attraction, carbonated or carbon'ic w., acidulous w. chalyb'eate w., one which contains salts of iron in appreciable quantities, chlo'rine w., one which contains the chlorides of sodium, pota ium, calcium, and magnesium in varying amounts, combined' w., water which enters as an e ential part in the constitution of a molecule, deep w., w. coming from below an impervious stratum of the earth, as spring-water or that from an artesian well. earth'y w., one containing a large amount of mineral matter, chiefly calcium sulphate, in solution, ground w., w. contained in the superficial strata of the earth, such as collects in wells. hard w., one which contains an exce of calcium or magnesium salts, in which soap forms a curdy removable by deposit; temporary hardne , boiling and filtering, is due to the presence of the carbonates of these metals; permanent hardne due to the presence of the sulphates of these is metals which are not decomposed by boihng. indifferent w., a mineral w. contammg but a small quantity of saline matter, i'odine w., one magnesium, pota ium, containing the iodides of or sodium in therapeutic amounts, meteor ic rain-water or w. from melting snow, mm'- w., eral w., one which contains appreciable amounts of certain salts which give to it therapeutic properties, po'table w., a water fit for drinking, being free from contamination and not containing a sufficient quantity of saline material to be regarded as a mineral w. sa'line w., one which contains neutral salts (chlorides, bromides, or
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