proof spirit /ˈpruf-/ 名詞
 規定酒精,准賣酒,標準酒精


 Proof, a.
 1. Used in proving or testing; as, a proof load, or proof charge.
 2. Firm or successful in resisting; as, proof against harm; waterproof; bombproof.
 I . . . have found thee
 Proof against all temptation.   --Milton.
    This was a good, stout proof article of faith.   --Burke.
 3. Being of a certain standard as to strength; -- said of alcoholic liquors.
 Proof charge Firearms, a charge of powder and ball, greater than the service charge, fired in an arm, as a gun or cannon, to test its strength.
 Proof impression. See under Impression.
 Proof load Engin., the greatest load than can be applied to a piece, as a beam, column, etc., without straining the piece beyond the elastic limit.
 Proof sheet. See Proof, n., 5.
 Proof spirit Chem., a strong distilled liquor, or mixture of alcohol and water, containing not less than a standard amount of alcohol. In the United States “proof spirit is defined by law to be that mixture of alcohol and water which contains one half of its volume of alcohol, the alcohol when at a temperature of 60° Fahrenheit being of specific gravity 0.7939 referred to water at its maximum density as unity. Proof spirit has at 60° Fahrenheit a specific gravity of 0.93353, 100 parts by volume of the same consisting of 50 parts of absolute alcohol and 53.71 parts of water,” the apparent excess of water being due to contraction of the liquids on mixture. In England proof spirit is defined by Act 58, George III., to be such as shall at a temperature of 51° Fahrenheit weigh exactly the part of an equal measure of distilled water. This contains 49.3 per cent by weight, or 57.09 by volume, of alcohol. Stronger spirits, as those of about 60, 70, and 80 per cent of alcohol, are sometimes called second, third, and fourth proof spirits respectively.
 Proof staff, a straight-edge used by millers to test the flatness of a stone.
 Proof stick Sugar Manuf., a rod in the side of a vacuum pan, for testing the consistency of the sirup.
 Proof text, a passage of Scripture used to prove a doctrine.

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From: Webster's Revised Unabridged Dictionary (1913)

 Spir·it n.
 1. Air set in motion by breathing; breath; hence, sometimes, life itself. [Obs.] “All of spirit would deprive.”
 The mild air, with season moderate,
 Gently attempered, and disposed eo well,
 That still it breathed foorth sweet spirit.   --Spenser.
 2. A rough breathing; an aspirate, as the letter h; also, a mark to denote aspiration; a breathing. [Obs.]
    Be it a letter or spirit, we have great use for it.   --B. Jonson.
 3. Life, or living substance, considered independently of corporeal existence; an intelligence conceived of apart from any physical organization or embodiment; vital essence, force, or energy, as distinct from matter.
 4. The intelligent, immaterial and immortal part of man; the soul, in distinction from the body in which it resides; the agent or subject of vital and spiritual functions, whether spiritual or material.
    There is a spirit in man; and the inspiration of the Almighty giveth them understanding.   --Job xxxii. 8.
    As the body without the spirit is dead, so faith without works is dead also.   --James ii. 26.
    Spirit is a substance wherein thinking, knowing, doubting, and a power of moving, do subsist.   --Locke.
 5. Specifically, a disembodied soul; the human soul after it has left the body.
    Then shall the dust return to the earth as it was, and the spirit shall return unto God who gave it.   --Eccl. xii. 7.
 Ye gentle spirits far away,
 With whom we shared the cup of grace.   --Keble.
 6. Any supernatural being, good or bad; an apparition; a specter; a ghost; also, sometimes, a sprite,; a fairy; an elf.
    Whilst young, preserve his tender mind from all impressions of spirits and goblins in the dark.   --Locke.
 7. Energy, vivacity, ardor, enthusiasm, courage, etc.
    =\“Write it then, quickly,” replied Bede; and summoning all his spirits together, like the last blaze of a candle going out, he indited it, and expired.\=   --Fuller.
 8. One who is vivacious or lively; one who evinces great activity or peculiar characteristics of mind or temper; as, a ruling spirit; a schismatic spirit.
    Such spirits as he desired to please, such would I choose for my judges.   --Dryden.
 9. Temper or disposition of mind; mental condition or disposition; intellectual or moral state; -- often in the plural; as, to be cheerful, or in good spirits; to be downhearted, or in bad spirits.
    God has . . . made a spirit of building succeed a spirit of pulling down.   --South.
 A perfect judge will read each work of wit
 With the same spirit that its author writ.   --Pope.
 10. Intent; real meaning; -- opposed to the letter, or to formal statement; also, characteristic quality, especially such as is derived from the individual genius or the personal character; as, the spirit of an enterprise, of a document, or the like.
 11. Tenuous, volatile, airy, or vapory substance, possessed of active qualities.
    All bodies have spirits . . . within them.   --Bacon.
 12. Any liquid produced by distillation; especially, alcohol, the spirits, or spirit, of wine (it having been first distilled from wine): -- often in the plural.
 13. pl. Rum, whisky, brandy, gin, and other distilled liquors having much alcohol, in distinction from wine and malt liquors.
 14. Med. A solution in alcohol of a volatile principle.  Cf. Tincture.
 15. Alchemy Any one of the four substances, sulphur, sal ammoniac, quicksilver, or arsenic (or, according to some, orpiment).
    The four spirits and the bodies seven.   --Chaucer.
 16. Dyeing Stannic chloride. See under Stannic.
 Note: ☞ Spirit is sometimes joined with other words, forming compounds, generally of obvious signification; as, spirit-moving, spirit-searching, spirit-stirring, etc.
 Astral spirits, Familiar spirits, etc. See under Astral, Familiar, etc.
 Animal spirits. (a) Physiol. The fluid which at one time was supposed to circulate through the nerves and was regarded as the agent of sensation and motion; -- called also the nervous fluid, or nervous principle. (b) Physical health and energy; frolicsomeness; sportiveness.
 Ardent spirits, strong alcoholic liquors, as brandy, rum, whisky, etc., obtained by distillation.
 Holy Spirit, or The Spirit Theol., the Spirit of God, or the third person of the Trinity; the Holy Ghost.  The spirit also signifies the human spirit as influenced or animated by the Divine Spirit.
 Proof spirit. Chem. See under Proof.
 Rectified spirit Chem., spirit rendered purer or more concentrated by redistillation, so as to increase the percentage of absolute alcohol.
 Spirit butterfly Zool., any one of numerous species of delicate butterflies of tropical America belonging to the genus Ithomia. The wings are gauzy and nearly destitute of scales.
 Spirit duck. Zool. (a) The buffle-headed duck. (b) The golden-eye.
 Spirit lamp Art, a lamp in which alcohol or methylated spirit is burned.
 Spirit level. See under Level.
 Spirit of hartshorn. Old Chem. See under Hartshorn.
 Spirit of Mindererus Med., an aqueous solution of acetate of ammonium; -- named after R. Minderer, physician of Augsburg.
 Spirit of nitrous ether Med. Chem., a pale yellow liquid, of a sweetish taste and a pleasant ethereal odor. It is obtained by the distillation of alcohol with nitric and sulphuric acids, and consists essentially of ethyl nitrite with a little acetic aldehyde. It is used as a diaphoretic, diuretic, antispasmodic, etc.  Called also sweet spirit of niter.
 Spirit of salt Chem., hydrochloric acid; -- so called because obtained from salt and sulphuric acid. [Obs.]
 Spirit of sense, the utmost refinement of sensation. [Obs.] --Shak.
 Spirits of turpentine, or Spirit of turpentine Chem., rectified oil of turpentine, a transparent, colorless, volatile, and very inflammable liquid, distilled from the turpentine of the various species of pine; camphine.  It is commonly used to remove paint from surfaces, or to dissole oil-based paint.  See Camphine.
 Spirit of vitriol Chem., sulphuric acid; -- so called because formerly obtained by the distillation of green vitriol. [Obs.]
 Spirit of vitriolic ether Chem. ethyl ether; -- often but incorrectly called sulphuric ether.  See Ether. [Obs.]
 Spirits of wine, or Spirit of wine Chem., alcohol; -- so called because formerly obtained by the distillation of wine.
 Spirit rapper, one who practices spirit rapping; a “medium” so called.
 Spirit rapping, an alleged form of communication with the spirits of the dead by raps. See Spiritualism, 3.
 Sweet spirit of niter. See Spirit of nitrous ether, above.
 Syn: -- Life; ardor; energy; fire; courage; animatioon; cheerfulness; vivacity; enterprise.

From: Webster's Revised Unabridged Dictionary (1913)

 Un·der·proof a. Containing less alcohol than proof spirit. See Proof spirit, under Spirit.

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From: WordNet (r) 2.0

 proof spirit
      n : a mixture containing half alcohol by volume at 60 degrees
          Fahrenheit