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    Test \Test\, n. [OE. test test, or cupel, potsherd, F. t[^e]t,
    from L. testum an earthen vessel; akin to testa a piece of
    burned clay, an earthen pot, a potsherd, perhaps for tersta,
    and akin to torrere to patch, terra earth (cf. {Thirst}, and
    {Terrace}), but cf. Zend tasta cup. Cf. {Test} a shell,
    {Testaceous}, {Tester} a covering, a coin, {Testy},
    {T[^e]te-[`a]-t[^e]te}.]
    1. (Metal.) A cupel or cupelling hearth in which precious
    metals are melted for trial and refinement.

    Our ingots, tests, and many mo. --Chaucer.

    2. Examination or trial by the cupel; hence, any critical
    examination or decisive trial; as, to put a man's
    assertions to a test. ``Bring me to the test.'' --Shak.

    3. Means of trial; as, absence is a test of love.

    Each test every light her muse will bear. --Dryden.

    4. That with which anything is compared for proof of its
    genuineness; a touchstone; a standard.

    Life, force, and beauty must to all impart,
    At once the source, and end, and test of art.
    --Pope.

    5. Discriminative characteristic; standard of judgment;
    ground of admission or exclusion.

    Our test excludes your tribe from benefit. --Dryden.

    6. Judgment; distinction; discrimination.

    Who would excel, when few can make a test
    Betwixt indifferent writing and the best? --Dryden.

    7. (Chem.) A reaction employed to recognize or distinguish
    any particular substance or constituent of a compound, as
    the production of some characteristic precipitate; also,
    the reagent employed to produce such reaction; thus, the
    ordinary test for sulphuric acid is the production of a
    white insoluble precipitate of barium sulphate by means of
    some soluble barium salt.

    8. A set of questions to be answered or problems to be
    solved, used as a means to measure a person's knowledge,
    aptitude, skill, intelligence, etc.; in school settings,
    synonymous with {examination} or {exam}; as, an
    intelligence test. Also used attributively; as a test
    score, test results.
    [PJC]

    {Test act} (Eng. Law), an act of the English Parliament
    prescribing a form of oath and declaration against
    transubstantiation, which all officers, civil and
    military, were formerly obliged to take within six months
    after their admission to office. They were obliged also to
    receive the sacrament according to the usage of the Church
    of England. --Blackstone.

    {Test object} (Optics), an object which tests the power or
    quality of a microscope or telescope, by requiring a
    certain degree of excellence in the instrument to
    determine its existence or its peculiar texture or
    markings.

    {Test paper}.
    (a) (Chem.) Paper prepared for use in testing for certain
    substances by being saturated with a reagent which
    changes color in some specific way when acted upon by
    those substances; thus, litmus paper is turned red by
    acids, and blue by alkalies, turmeric paper is turned
    brown by alkalies, etc.
    (b) (Law) An instrument admitted as a standard or
    comparison of handwriting in those jurisdictions in
    which comparison of hands is permitted as a mode of
    proving handwriting.

    {Test tube}. (Chem.)
    (a) A simple tube of thin glass, closed at one end, for
    heating solutions and for performing ordinary
    reactions.
    (b) A graduated tube.

    Syn: Criterion; standard; experience; proof; experiment;
    trial.

    Usage: {Test}, {Trial}. Trial is the wider term; test is a
    searching and decisive trial. It is derived from the
    Latin testa (earthen pot), which term was early
    applied to the fining pot, or crucible, in which
    metals are melted for trial and refinement. Hence the
    peculiar force of the word, as indicating a trial or
    criterion of the most decisive kind.

    I leave him to your gracious acceptance, whose
    trial shall better publish his commediation.
    --Shak.

    Thy virtue, prince, has stood the test of
    fortune,
    Like purest gold, that tortured in the furnace,
    Comes out more bright, and brings forth all its
    weight. --Addison.

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