Толковый словарь английского языка Oxford English Reference - zero
Zero
zero
n. & v. --n. (pl. -os) 1 a the figure 0; nought. b no quantity or number; nil. 2 a point on the scale of an instrument from which a positive or negative quantity is reckoned. 3 (attrib.) having a value of zero; no, not any (zero population growth). 4 (in full zero-hour) a the hour at which a planned, esp. military, operation is timed to begin. b a crucial moment. 5 the lowest point; a nullity or nonentity. --v.tr. (-oes, -oed) 1 adjust (an instrument etc.) to zero point. 2 set the sights of (a gun) for firing. Phrases and idioms zero in on 1 take aim at. 2 focus one's attention on. zero option a disarmament proposal for the total removal of certain types of weapons on both sides. zero-rated on which no value added tax is charged. zero-sum (of a game, political situation, etc.) in which whatever is gained by one side is lost by the other so that the net change is always zero. Etymology: F z{eacute}ro or It. zero f. OSp. f. Arab. sifr CIPHER
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1.
I. noun (plural ~s; also ~es) Etymology: French or Italian; French zéro, from Italian ~, from Medieval Latin zephirum, from Arabic ṣifr Date: 1598 1. the arithmetical symbol 0 or Ø denoting the absence of all magnitude or quantity, additive identity, a value of an independent variable that makes a function equal to ~ , see: number 3. a. the point of departure in reckoning, the temperature represented by the ~ mark on a thermometer, the setting or adjustment of the sights of a firearm that causes it to shoot to point of aim at a desired range, an insignificant person or thing ; nonentity, 5. a state of total absence or neutrality, the lowest point ; nadir, something arbitrarily or conveniently designated ~, II. adjective Date: 1810 1. of, relating to, or being a ~, having no magnitude or quantity ; not any , c. having no phonetic manifestation , having no modified inflectional form , 2. limiting vision to 50 feet (15 meters) or less, limited to 165 feet (50.3 meters) or less, III. verb Date: 1913 transitive verb to determine or adjust the ~ of (as a rifle), 2. to concentrate firepower on the exact range of, to bring to bear on the exact range of a target, intransitive verb to adjust fire on a specific target, to close in on or focus attention on an objective ...Толковый словарь английского языка
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