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pound,abbr. lb, unit of either massmass,
in physics, the quantity of matter in a body regardless of its volume or of any forces acting on it. The term should not be confused with weight, which is the measure of the force of gravity (see gravitation) acting on a body.
..... Click the link for more information. or forceforce,
commonly, a "push" or "pull," more properly defined in physics as a quantity that changes the motion, size, or shape of a body. Force is a vector quantity, having both magnitude and direction.
..... Click the link for more information. in the customary system of English units of measurementEnglish units of measurement,
principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related systems—the U.S.
..... Click the link for more information. . Two different pounds of mass are defined, one in the avoirdupois system of units and one in the Troy system. The avoirdupois pound (lb avdp) is now defined in terms of the kilogramkilogram,
abbr. kg, fundamental unit of mass in the metric system, defined as the mass of the International Prototype Kilogram, a platinum-iridium cylinder kept at Sèvres, France, near Paris.
..... Click the link for more information. , the metric unit of mass; 1 lb avdp is equal to 0.45359237 kg. The Troy pound is used only for the measurement of precious metals and is defined as 5760/7000 of the avoirdupois pound. The apothecaries' pound is identical to the Troy pound. As a unit of force, or weight, the pound is the weight that a mass of 1 lb avdp has when the acceleration of gravity has its standard value (9.80665 meters per second per second). In ordinary usage, the term pound is often used without specifying whether force or mass is meant, but for scientific purposes it is important to make this distinction.
(in Russian, funt). (1) A unit of weight in the Russian system of measures that was abolished in 1918. One Russian avoirdupois pound was equal to 1/40 pood = 32 loty = 96 zolotniky = 9,216 doli = 0.40951241 kg. A prototype kept at the Central Board of Weights and Measures served as the standard Russian pound. In Russia, the apothecaries’ pound (seeAPOTHECARIES’ WEIGHT) was also used; it was equal to 7/8 of an avoirdupois pound, that is, to 0.35832336 kg.
(2) A major unit in the English system of measures; abbreviated lb. One avoirdupois pound equals 0.45359237 kg. The pound is divided into 16 ounces, into 16 × 16 = 256 drams, and into 7,000 grains. In addition to the avoirdupois pound, the apothecaries’ pound and the troy pound are used in the USA, Great Britain, and a number of other countries. Both the apothecaries’ pound and the troy pound are equal to 0.37324177 kg.
a monetary unit of several countries, including the Arab Republic of Egypt (1 Egyptian pound = 100 piasters = 1,000 milliemes), Israel (1 Israeli pound = 100 agorot), Ireland (1 Irish pound = 100 pence), Lebanon and Syria (1 Lebanese or Syrian pound = 100 piasters), Cyprus, the Sudan, Malta, and Gibraltar. According to the September 1977 exchange rate of the State Bank of the USSR, 100 Syrian pounds equal 18 rubles 82 kopeks, 1 Egyptian pound equals 1 ruble 85 kopeks, 100 Lebanese pounds equal 23 rubles 50 kopeks, and 1 Sudanese pound equals 2 rubles 14 kopeks.