Proof spirit
Proof Proof, a. [1913 Webster] 1. Used in proving or testing; as, a proof load, or proof charge. [1913 Webster]

2. Firm or successful in resisting; as, proof against harm; waterproof; bombproof. [1913 Webster]

I . . . have found thee Proof against all temptation. --Milton. [1913 Webster]

This was a good, stout proof article of faith. --Burke. [1913 Webster]

3. Being of a certain standard as to strength; -- said of alcoholic liquors. [1913 Webster]

{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[deg] Fahrenheit being of specific gravity 0.7939 referred to water at its maximum density as unity. Proof spirit has at 60[deg] 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[deg] Fahrenheit weigh exactly the 12/13 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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Proof spirit — Spirit Spir it, n. [OF. espirit, esperit, F. esprit, L. spiritus, from spirare to breathe, to blow. Cf. {Conspire}, {Expire}, {Esprit}, {Sprite}.] 1. Air set in motion by breathing; breath; hence, sometimes, life itself. [Obs.] All of spirit… …   The Collaborative International Dictionary of English

  • Proof spirit — (engl., spr. prūf spirrit), Probespiritus, s. Alkoholometrie, S. 340 …   Meyers Großes Konversations-Lexikon

  • proof spirit — prüf n 1) an alcoholic liquor or mixture of alcohol and water containing 50 percent ethanol by volume at 60° F (15.6° C) 2) Brit liquor that weighs 12/13 of an equal measure of distilled water or contains 57.10 percent by volume of alcohol …   Medical dictionary

  • proof spirit — n. an alcoholic liquor, or a mixture of alcohol and water, containing by volume 50 percent (in Great Britain and Canada 57.10 percent) ethyl alcohol at 15.6°C (c. 60°F) …   English World dictionary

  • proof spirit — an alcoholic liquor, or mixture of alcohol and water, containing a standard amount of alcohol. In the U.S. proof spirit has a specific gravity of .93353 (containing one half of its volume of alcohol of a specific gravity of .7939 at 60° F). In… …   Universalium

  • proof spirit — proof′ spir it n. vin an alcoholic liquor containing one half of its volume of alcohol of a specific gravity of.7939 at 60° F • Etymology: 1735–45 …   From formal English to slang

  • proof spirit — noun Date: 1712 an alcoholic liquor or mixture of ethanol and water that contains 50 percent ethanol by volume at 60°F (16°C) …   New Collegiate Dictionary

  • proof spirit — noun A mixture of alcohol and water used as a standard for distilled drinks …   Wiktionary

  • proof spirit — strong alcohol, strong liquor …   English contemporary dictionary

  • proof spirit — noun a mixture of alcohol and water containing (in the UK) 57.1 per cent alcohol by volume or (in the US) 50 per cent alcohol by volume, used as a standard of strength of distilled alcoholic spirits …   English new terms dictionary

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