n. n. A test for blood in the urine. On boiling with caustic alkali, the resultant precipitate of phosphates will present a red color.n. For glucose, as in urine, a strip of white woolen cloth steeped in a 1:3 solution of stannous chlorid in water and dried. Such a test strip, dipped into the suspected liquid and then heated to 130° C., turns brown if glucose is present.n. A test for the presence of blood in the intestinal discharges, determined by the production of a blue-violet color on treatment with guaiac and turpentine.n. An earthen pot in which metals were tried.n. Specifically The movable hearth or cupel of a reverberatory furnace, used in separating silver from lead by cupellation (see cupel), according to the method usually followed in England.n. Examination by the test or cupel; hence, any critical trial or examination: as, a crucial test.n. Means of trial; that by which the presence, quality, or genuineness or something is shown; touchstone.n. [capitalized] The Test Act of 1673. See phrase below.n. In chem., a substance which is employed to detect the presence of any ingredient in a compound, by causing it to exhibit some known property; a substance which, being added to another, indicates the chemical nature of that other substance by producing certain changes in appearance and properties; a reagent: thus, infusion of galls is a test of the presence of iron, which it renders evident by the production of a black color in liquids containing that metal; litmus is a test for determining the presence of acids when uncombined or in excess, as its blue color is turned red by acids.n. Judgment; discrimination; distinction.n. An apparatus for proving light hydrocarbon oils by heat, to find the temperature at which they evolve explosive vapors; an oil test.n. Synonyms and Proof, ordeal, criterion. See inference.In metallurgy, to refine, as gold or silver, by means of lead, in a test, by the removal by scorification of all extraneous matter, or in some other way.To put to the test; bring to trial and examination; compare with a standard; try: as, to test the soundness of a principle; to test the validity of an argument; to test a person's loyalty; to test the electrical resistance of a wire.Specifically, in chem., to examine by the use of some reagent.n. A potsherd.n. In zoology, the hard covering of certain animals; a shell; a lorica.n. In botany, same as testa, 2.n. A witness.n. Testimony; evidence.In law, to attest and date: as, a writing duly tested.To make a will or testament.
