1 [gram]
a metric unit of mass or weight equal to 15.432 grains; one thousandth of a kilogram. Abbreviation: g
Also, especially British, gramme.

1790–1800; < French gramme < Late Latin gramma a small weight < Greek grámma something drawn, a small weight Unabridged


2 [gram]
(in the East Indies) the chickpea used as a food for people and cattle.
any of several other beans, as the mung bean, Vigna radiata (green gram or golden gram) or the urd, V. mungo (black gram)

1695–1705; < Portuguese grão < Latin grānum grain


(in the Volsunga Saga ) the sword of Sigmund, broken by Odin, repaired by Regin, and used again by Sigurd in killing Fafnir.
Compare Balmung.

< Old Norse Gramr literally, angry, evil


a combining form occurring in loanwords from Greek, where it meant “something written,” “drawing” (epigram; diagram ); on this model, used in the formation of compound words (oscillogram ).
Compare -graph.

< Greek -gramma, combining form of grámma something written or drawn; akin to carve


a combining form of gram1: kilogram.


a combining form extracted from telegram, used in the formation of compound words that have the general sense “message, bulletin”: culturegram; electiongram; prophecy-gram. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
gram1 (ɡræm)
g a metric unit of mass equal to one thousandth of a kilogram. It is equivalent to 15.432 grains or 0.002 205 pounds
[C18: from French gramme, from Late Latin gramma, from Greek: small weight, from graphein to write]

gram2 (ɡræm)
1.  any of several leguminous plants, such as the beans Phaseolus mungo (black gram or urd) and P. aureus (green gram), whose seeds are used as food in India
2.  the seed of any of these plants
[C18: from Portuguese gram (modern spelling grão), from Latin grānumgrain]

gram3 (ɡrɑːm)
(in India) a village

abbreviation for
1.  grammar
2.  grammatical

n combining form
indicating a drawing or something written or recorded: hexagram; telegram
[from Latin -gramma, from Greek, from gramma letter and grammē line]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1797, from Fr. gramme, from L.L. gramma "small weight," from Gk. gramma "small weight," originally "letter of the alphabet," from stem of graphein "to draw, write." Adopted into Eng. about two years before it was established in Fr. as a unit in the metric system by law of 19 frimaire, year VIII (1799).

suffix from telegram (1857), first abstracted 1979 (in Gorillagram, a proprietary name in U.S.), and put to wide use in forming new words, such as stripagram (1981). The construction violates Gk. grammar, as an adv. could not properly form part of a compound noun.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

gram (grām)
Abbr. g, gm., gr.
A metric unit of mass equal to 15.432 grains, one thousandth (10-3) of a kilogram, or 0.035 ounce.

Gram (grām, gräm), Hans Christian Joachim. 1853-1938.

Danish physician who developed (1884) Gram's stain as a method of distinguishing types of bacteria.

-gram suff.
Something written or drawn; a record: cardiogram.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
gram   (grām)  Pronunciation Key 
A unit of mass in the metric system, equal to 0.001 kilogram or 0.035 ounce. See Table at measurement.
Gram   (gräm, grām)  Pronunciation Key 
Danish bacteriologist who in 1884 developed a method of staining bacteria, called Gram's stain or Gram's dye, that is used to identify and classify bacteria, often from samples of infected body fluids. The classification, called gram-negative or gram-positive, can be useful in the initial selection of antibiotics to treat the infection.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

gram definition

The basic unit of measurement for mass in the metric system; one cubic centimeter of water has a mass of approximately one gram.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Computing Dictionary

GRAM definition

An extension of BNF used by the SIS compiler generator.
["SIS - Semantics Implementation System", P.D. Mosses, TR DAIMI MD-30, Aarhus U, Denmark].

The Free On-line Dictionary of Computing, © Denis Howe 2010
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American Heritage
Abbreviations & Acronyms
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences for gram
Providencia is a gram negative, motile bacterium of the family enterobacteriaceae.
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