1. (lb, lbm, or \#)
   a traditional unit of mass or weight. The Romans used a pound (the libra pondo, "pound of weight") divided into 12 ounces. All the countries of western Europe used similar units, divided into 12 or 16 ounces, until the advent of the metric system. 12-ounce pounds were common in Italy and southern France, but in Spain and northern Europe 16-ounce pounds became the norm. The word libra is used for this unit in Italy, Spain, and Portugal; in France it is called the livre. Further north, the Latin word pondo ("weight") is the origin of the names of the English pound, Dutch pond, Danish pund, German pfund, and Russian funt. In England, two different "pound" units became standard. The unit now in general use in the United States is the avoirdupois pound, so-called from a French phrase avoir du poids, literally "goods of weight," indicating simply that the goods were being sold by weight rather than by volume or by the piece. The avoirdupois pound is divided into 16 ounces. By international agreement, one avoirdupois pound is equal to exactly 453.592 37 grams; this is exactly 175/144 = 1.215 28 troy pounds. See avoirdupois weights for additional information. The traditional symbol lb stands for libra, the Latin word for the unit. The avoirdupois pound is sometimes abbreviated lb av or lb ap to distinguish it from the less common troy pound. The symbol lbm is used in science to distinguish the pound of mass from the pound of force (lbf): see pound force, below.
   2. (lb t or lb or \#)
   a second traditional unit of mass or weight. The troy pound, named for the French market town of Troyes, was the unit used in England by apothecaries and jewelers. The troy pound is divided into 12 ounces like the Roman pound. One troy pound is 373.242 grams, or exactly 144/175 = 0.822 858 avoirdupois pounds (13.165 72 avoirdupois ounces). The troy and avoirdupois pounds are connected by the grain: there are 5760 grains in a troy pound and 7000 grains in an avoirdupois pound. See troy weights for additional information. The troy pound should be abbreviated lb. t. to distinguish it from the more common avoirdupois pound.
   3. (lbf or lb)
   a traditional unit of force; see pound force, below.
   4. (lb)
   a traditional unit measuring the weight of paper; see pound weight, below.

Dictionary of units of measurement. 2015.


Look at other dictionaries:

  • Pound — may refer to:Units*Pound (currency), a unit of currency in various countries *Pound sign, £ *Pound sterling, the fundamental unit of currency in Great Britain * Pound (force), a unit of force *Pound (mass), various units of mass *Number sign, #,… …   Wikipedia

  • POUND (E.) — Critique, traducteur, poète, Pound a marqué la poésie américaine contemporaine de son empreinte: nul n’a échappé à son influence. L’œuvre de Pound, tendue et intransigeante, assure à la poésie américaine continuité et permanence; de même qu’elle… …   Encyclopédie Universelle

  • pound — pound1 [pound] n. pl. pounds; sometimes, after a number, pound [ME < OE pund, akin to Ger pfund: WGmc loanword < L pondo, a pound, orig. abl. of pondus, weight (in libra pondo, a pound in weight), akin to pendere: see PENDANT] 1. a) the… …   English World dictionary

  • pound — [paʊnd] noun [countable] 1. written abbreviation £ the standard unit of currency in Britain, which is divided into 100 pence: • a twenty pound note • a shortfall of millions of pounds 2. the (British) pound the value of the British currency… …   Financial and business terms

  • Pound — (engl. für ‚Pfund‘) steht für: pound (anglo amerikanische Gewichtseinheit) Pfund Sterling, die aktuelle britische Währung Pound (Software), eine Load Balancing Software £ oder ₤, das Pfundzeichen Pound ist der Name folgender Personen: Caspar… …   Deutsch Wikipedia

  • pound — ● pound nom féminin Unité fondamentale britannique de masse (symbole lb). [La pound, dont le nom français correspondant est livre, est l unité d où sont dérivées les autres. C est la masse d un étalon en platine, l « Imperial Standard Pound »,… …   Encyclopédie Universelle

  • Pound — 〈[ paʊnd] n.; s, od. s; 〉 engl. Gewichtseinheit, 453,6 g * * * Pound [paʊnd], das; , s [engl. pound, eigtl. = Pfund, < aengl. pund < lat. pondo, ↑ Pfund]: englische Gewichtseinheit (453,60 g; Abk.: lb. [Sg.], lbs. [Pl.]). * * * I …   Universal-Lexikon

  • Pound — Pound, n.; pl. {Pounds}, collectively {Pound} or {Pounds}. [AS. pund, fr. L. pondo, akin to pondus a weight, pendere to weigh. See {Pendant}.] 1. A certain specified weight; especially, a legal standard consisting of an established number of… …   The Collaborative International Dictionary of English

  • pound — Ⅰ. pound [1] ► NOUN 1) a unit of weight equal to 16 oz avoirdupois (0.4536 kg), or 12 oz troy (0.3732 kg). 2) (also pound sterling) (pl. pounds sterling) the basic monetary unit of the UK, equal to 100 pence. 3) another term for PUNT(Cf. ↑ …   English terms dictionary

  • Pound — Pound, n. [AS. pund an inclosure: cf. forpyndan to turn away, or to repress, also Icel. pynda to extort, torment, Ir. pont, pond, pound. Cf. {Pinder}, {Pinfold}, {Pin} to inclose, {Pond}.] 1. An inclosure, maintained by public authority, in which …   The Collaborative International Dictionary of English

  • Pound — Pound, WI U.S. village in Wisconsin Population (2000): 355 Housing Units (2000): 174 Land area (2000): 0.815422 sq. miles (2.111934 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.815422 sq. miles (2.111934 sq …   StarDict's U.S. Gazetteer Places

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