3 definitions found From The Collaborative International Dictionary of English v.0.48 [gcide]: Zero \Ze"ro\, n.; pl. {Zeros}or {Zeroes}. [F. z['e]ro, from Ar. [,c]afrun, [,c]ifrun, empty, a cipher. Cf. {Cipher}.] [1913 Webster] 1. (Arith.) A cipher; nothing; naught. [1913 Webster] 2. The point from which the graduation of a scale, as of a thermometer, commences. [1913 Webster] Note: Zero in the Centigrade, or Celsius thermometer, and in the R['e]aumur thermometer, is at the point at which water congeals. The zero of the Fahrenheit thermometer is fixed at the point at which the mercury stands when immersed in a mixture of snow and common salt. In Wedgwood's pyrometer, the zero corresponds with 1077[deg] on the Fahrenheit scale. See Illust. of {Thermometer}. [1913 Webster] 3. Fig.: The lowest point; the point of exhaustion; as, his patience had nearly reached zero. [1913 Webster] {Absolute zero}. See under {Absolute}. {Zero method} (Physics), a method of comparing, or measuring, forces, electric currents, etc., by so opposing them that the pointer of an indicating apparatus, or the needle of a galvanometer, remains at, or is brought to, zero, as contrasted with methods in which the deflection is observed directly; -- called also {null method}. {Zero point}, the point indicating zero, or the commencement of a scale or reckoning. [1913 Webster] [1913 Webster] From WordNet (r) 2.0 [wn]: zero adj 1: indicating the absence of any or all units under consideration; "a zero score" [syn: {0}] 2: indicating an initial point or origin 3: of or relating to the null set (a set with no members) 4: having no measurable or otherwise determinable value; "the goal is zero population growth" [syn: {zero(a)}] n 1: a quantity of no importance; "it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear zilch about it" [syn: {nothing}, {nil}, {nix}, {nada}, {null}, {aught}, {cipher}, {cypher}, {goose egg}, {naught}, {zilch}, {zip}] 2: a mathematical element that when added to another number yields the same number [syn: {0}, {nought}, {cipher}, {cypher}] 3: the quantity that registers a reading of zero on a scale [syn: {zero point}] v 1: adjust (an instrument or device) to zero value 2: adjust (as by firing under test conditions) the zero of (a gun); "He zeroed in his rifle at 200 yards" [syn: {zero in}] [also: {zeroes} (pl)] From WordNet (r) 2.0 [wn]: zeroes See {zero}
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