释义 |
proof I. \ˈprüf\ noun (-s) Etymology: Middle English proof, prove, alteration (influenced by proven to prove) of preef, preve, preove, from Old French preuve, from Late Latin proba, from Latin probare to test, prove — more at prove 1. a. : the cogency of evidence or of demonstrated relationship that compels acceptance by the mind of a truth or a fact : demonstration < one who believes in you doesn't need any proof at all — W.J.Reilly > b. : the derivation of one or more propositions or statements from one or more others in accordance with either generally recognized or specifically stipulated principles of validity 2. obsolete : something proved by common experience : knowledge acquired by experience < 'tis a common proof that lowliness is young ambition's ladder — Shakespeare > 3. : something that induces certainty or establishes validity: as a. : a chain of statements or formulas leading logically from axioms and theorems previously established to the theorem which is the conclusion of the demonstration b. : a mathematical process that establishes the validity of a theorem or statement c. : an act, effort, or operation designed to establish or discover a fact or truth < prepared to put his theories to the proof > < laboratory proof of the presence of gold in the sample > 4. obsolete : outcome, result 5. a. obsolete : witness b. : a leaf having its original rough outer edge or a pair of adjacent leaves still joined together at one or more edges regarded as proof that the book containing it is untrimmed — called also witness 6. dialect chiefly England : good condition or quality : goodness 7. a. archaic : the quality or state of having been tested or tried; especially : unyielding hardness or firmness < armor of proof > b. obsolete : armor 8. : evidence operating to determine the finding or judgment of a tribunal: as a. English law : a written statement of the testimony which a proposed witness will give in court b. civil law : a document or number of documents so established as to be legally receivable as evidence c. Scots law : the evidence upon a point at issue taken before a judge or judge's representative; also : the taking of the evidence d. Scots law : a trial by a court without a jury 9. obsolete : attempt 10. a. : an impression (as from type) taken for correction or examination; also : a comparable print or impression made by some other composing or printing process b. : a proof impression of an engraving, etching, or lithograph — see open-letter proof, proof before letter, remarque proof c. : proof coin d. : a test photographic print made from a negative 11. a. : a test applied to articles or substances to determine whether they are of standard or satisfactory quality < the proof of the pudding is in the eating > b. : a trial of ordnance, projectiles, armor, or powder to determine suitability for acceptance c. : the process of bringing dough to a standard lightness 12. a. : the minimum alcoholic strength of proof spirit b. : strength with reference to the standard for proof spirit Synonyms: see reason II. adjective 1. : firm or successful in resisting or repelling < proof against your own moods — William Sansom > : impenetrable, impregnable — often used in combination < burglar-proof windows > < bombproof > — sometimes distinguished from resistant 2. : used in proving or testing : serving as a proof: as a. : measuring or producing the greatest strain in a piece or member consistent with safety < proof stress > < proof strength > b. of gold or silver : perfectly pure and kept (as in a mint or assay office) as a standard of comparison or for experiment 3. : of standard strength or quality or alcoholic content < proof whiskey > III. adverb Etymology: proof (II) archaic : confirmedly, thoroughly, utterly IV. transitive verb (-ed/-ing/-s) Etymology: proof (I) 1. a. : to make or take a proof or test of < proof an etching > < proof a negative > < proof a galley of set type > b. : proofread < books which I edited, proofed, and supervised in production — E.G.Berenson > 2. : to bring (dough) to the proper lightness 3. [proof (II) ] : to give a resistant quality to : make impervious to water, gas, weather, or chemical action V. transitive verb : to activate (yeast) by mixing with water and sometimes sugar or milk |