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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

gam·ma

Audio Help [gam-uh] Pronunciation Key

–noun

1.	the third letter of the Greek alphabet (Γ, γ).

2.	the consonant sound represented by this letter.

3.	the third in a series of items.

4.	(initial capital letter) Astronomy. a star that is usually the third brightest of a constellation: The third brightest star in the Southern Cross is Gamma Crucis.

5.	a unit of weight equal to one microgram.

6.	Physics. a unit of magnetic field strength, equal to 10−⁵ gauss.

7.	Photography. a measure of the degree of development of a negative or print.

8.	Television. an analogous numerical indication of the degree of contrast between light and dark in the reproduction of an image in television.

9.	Chiefly British. a grade showing that an individual student is in the third, or lowest, of three scholastic sections in a class. Compare alpha (def. 7), beta (def. 8).

[Origin: < Gk gámma

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
Gamma

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American Heritage Dictionary - Cite This Source - Share This

gam·ma Audio Help (gām'ə) Pronunciation Key
n.

The third letter of the Greek alphabet. See Table at alphabet.
The third item in a series or system of classification.
A unit of magnetic intensity equal to one hundred thousandth (10^-5) of an oersted.
A unit of mass equal to one millionth (10^-6) of a gram.
Chemistry The third position from a designated carbon atom in an organic molecule at which an atom or a radical may be substituted.

[Middle English, from Greek, of Phoenician origin; see gml² in Semitic roots.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
gamma

"third letter of the Greek alphabet," c.1400, from Gk. gamma, from Phoenician gimel, lit. "camel." Gamma rays (1903) were originally thought to be a third type of radiation, now known to be identical with very short X-rays.

WordNet - Cite This Source - Share This

gamma
noun
1.	the 3rd letter of the Greek alphabet
2.	a unit of magnetic field strength equal to one-hundred-thousandth of an oersted
3.	Portuguese navigator who led an expedition around the Cape of Good Hope in 1497; he sighted and named Natal on Christmas Day before crossing the Indian Ocean (1469-1524) [syn: da Gamma]

Kernerman English Multilingual Dictionary - Cite This Source - Share This
gamma [ˈgӕmə]

a powerful form of radiation

Arabic:	أشِعَّة جَمّا
Chinese (Simplified):	伽马
Chinese (Traditional):	伽馬射線
Czech:	záření gama
Danish:	gamma
Dutch:	gamma-
Estonian:	gammakiired
Finnish:	gammasäteet
French:	rayons gamma
German:	das Gamma, Gamma-…
Greek:	ακτίνες γάμα
Hungarian:	gamma-sugárzás
Icelandic:	gammageislar
Indonesian:	sinar gamma
Italian:	raggi gamma*

Japanese:	ガンマ線
Latvian:	gamma stari
Lithuanian:	gama spinduliai
Norwegian:	gammastråler
Polish:	promienie gamma
Portuguese (Brazil):	raios gama
Portuguese (Portugal):	gama
Romanian:	raze gama
Russian:	гамма-лучи
Slovak:	gama lúče
Slovenian:	gama žarki
Spanish:	gama, rayos gama
Swedish:	gamma: gammastrålar
Turkish:	gama ışınları

Free On-line Dictionary of Computing - Cite This Source - Share This

GAMMA language
1. A language for matrices and generation of mathematical programming reports.
["GAMMA 3.3 for MPS/MPSX, IBM System:/360", Bonnor & Moore Assocs (Mar 1975)].
2. A high-level parallel language.
[Research Directions in High-Level Parallel Languages, LeMetayer ed, Springer 1992].
(1994-11-29)