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Gram
Unit sign g
Measure Mass
Base Unit Gram
Multiple of Base 101
System SI, CGS, other
Common usage Commonly used in cooking and drug measuring.
Examples
One millilitre of water is 1 g at 4 °C.
Typical coins: a euro is 7.5 g and a US penny is 2.5 g
Conversion
SI 10 dg = 1 g = 0.1 dag = 0.001 kg
Imperial 1 g ≈ 0.0353 ounce ≈ 0.00220 pound
see also: Orders of magnitude (mass)
Next units
decigram < Gram < decagram
Pen cap, about 1 gram.
For other uses of the words gram or gramme, see gram (disambiguation).

The gram (also gramme in British English),[1] (Greek/Latin root grámma); symbol g, is a unit of mass.

Originally defined as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre, and at the temperature of melting ice"[2] (later 4 °C), a gram is now defined as one one-thousandths of the SI base unit, the kilogram, or 1×10-3 kg, which itself is defined as being equal to the mass of a physical prototype preserved by the International Bureau of Weights and Measures.

Contents

Other abbreviations

The International System of Units abbreviation for the gram is g, and follows the numeric value with a space, as in "640 g".[3][4] In some fields and regions, the international standard units for units are used quite strictly, in particular in technical and scientific publications and in legally regulated product labels. In other contexts, a wide range of other unofficial abbreviations have been encountered, such as gr, gm, grm, gms, grms. The use of abbreviations such as "gm", "Gm", or "GM" for grams could potentially lead to serious errors in healthcare settings where accidentally transposing "gm" to "mg" (milligrams) would result in a 1000 times dosage difference. It would therefore be prudent to use "g" as the abbreviation for grams in any healthcare setting.

History

It was the base unit of mass in the original French metric system and the later centimetre-gram-second (CGS) system of units. The word originates from Late Latin gramma – a small weight.

Uses

The gram is today the most widely used unit of measurement for non-liquid ingredients in cooking and grocery shopping worldwide. For food products that are typically sold in quantities far less than 1 kg, the unit price is normally given per 100 g.

Most standards and legal requirements for nutrition labels on food products require relative contents to be stated per 100 g of the product, such that the resulting figure can also be read as a percentage.

Conversion factors

References

  1. ^ "AskOxford: gram". English Dictionary. Oxford University Press. 2009. http://www.askoxford.com/concise_oed/gram?view=uk. Retrieved 2009-06-27.  
  2. ^ Décret relatif aux poids et aux mesures, 1795
  3. ^ SI brochure, Section 3.2
  4. ^ NIST Special Publication 811

See also

External links

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1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

GRAM, or Chick-Pea, called also Egyptian pea, or Bengal gram (from Port. grao, formerly gram, Lat. granum, Hindi Chanel, Bengali Chhola, Ital. cece, Span. garbanzo), the Cicer arietinum of Linnaeus, so named from the resemblance of its seed to a ram's head. It is a member of the natural order Leguminosae, largely cultivated as a pulse-food in the south of Europe, Egypt and western Asia as far as India, but is not known undoubtedly wild. The plant is an annual herb with flexuose branches, and alternately arranged pinnately compound leaves, with small, oval, serrated leaflets and small eared stipules. The flowers are borne singly in the leaf-axils on a stalk about half the length of the leaf and jointed and bent in the middle; the corolla is blue-purple. The inflated pod, I to IIin. long, contains two roundish seeds. It was cultivated by the Greeks in Homer's time under the name erebinthos, and is also referred to by Dioscorides as krios from the resemblance of the pea to the head of a ram. The Romans called it cicer, from which is derived the modern names given to it in the south of Europe. Names, more or less allied to one another, are in vogue among the peoples of the Caucasus, the Caspian Sea, Armenia and Persia, and there is a Sanskrit name and several others analogous or different in modern Indian languages. The plant has been cultivated in Egypt from the beginning of the Christian era, but there is no proof that it was known to the ancient Egyptians. Alphonse de Candolle (Origin of Cultivated Plants, p. 325) suggests that the plant originally grew wild in the countries to the south of the Caucasus and to the north of Persia. "The western Aryans (Pelasgians, Hellenes) perhaps introduced the plant into southern Europe, where, however, there is some probability that it was also indigenous. The western Aryans carried it to India." Gram is largely cultivated in the East, where the seeds are eaten raw or cooked in various ways, both in their ripe and unripe condition, and when roasted and ground subserve the same purposes as ordinary flour. In Europe the seeds are used as an ingredient in soups. They contain, in loo parts without husks, nitrogenous substances 22.7, fat 3.76, starch 63.18, mineral matters 2.6 parts, with water (Forbes Watson, quoted in Parkes's Hygiene). The liquid which exudes from the glandular hairs clothing the leaves and stems of the plant, more especially during the cold season when the seeds ripen, contains a notable proportion of oxalic acid. In Mysore the dew containing it is collected by means of cloths spread on the plant over night, and is used in domestic medicine. The steam of water in which the fresh plant is immersed is in the Deccan resorted to by the Portuguese for the treatment of dysmenorrhoea. The seed of Phaseolus Mungo, or green gram (Hind. and Beng. moong), a form of which plant with black seeds (P. Max of Roxburgh) is termed black gram, is an important article of diet among the labouring classes in India. The meal is an excellent substitute for soap, and is stated by Elliot to be an invariable concomitant of the Hindu bath. A variety, var. radiatus (P. Roxburghii, W. and Am., or P. radiatus, Roxb.) (vern. urid, mashkalai), also known as green gram, is perhaps the most esteemed of the leguminous plants of India, where the meal of its seed enters into the composition of the more delicate cakes and dishes. Horse gram, Dolichos biflorus (vern. kulthi), which supplies in Madras the place of the chick-pea, affords seed which, when boiled, is extensively employed as a food for horses and cattle in South India, where also it is eaten in curries.

See W. Elliot, "On the Farinaceous Grains and the various kinds of Pulses used in Southern India," Edin. New Phil. Journ. xvi. (1862) 16 sq.; H. Drury, The Useful Plants of India (1873); U. C. Dutt, Materia Medica of the Hindus (Calcutta, 1877); G. Watt, Dictionary of the Economic Products of India (1890).


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Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

See also gram

German

Etymology

Old High German gram (adjective). Akin to Frankish gram, Old Norse gramr (wroth), French and English chagrin.

Noun

Gram m.

  1. grief

Simple English

The sword Siegfried used to kill the dragon with is at Gram (mythology)

A gram is a unit of measure part of the metric system. It measures mass, or how much matter is in something.The symbol g often means the gram.

One gram used to be defined as the mass of one cubic centimeter of pure water at 3.98 degrees Celsius. Now one gram is defined as 1/1000 kilogram.

krc:Грамм


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