First Known Use: 15th century
Dictionary
1gamma
noun gam·ma \ˈga-mə\
: the third letter of the Greek alphabet
Full Definition of GAMMA
1
: the 3d letter of the Greek alphabet — see alphabet table
2
: the degree of contrast of a developed photographic image or of a video image
3
: a unit of magnetic flux density equal to one nanotesla
4
: gamma ray <gamma counter>
5
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Origin of GAMMA
Middle English, from Late Latin, from Greek, of Semitic origin; akin to Hebrew gīmel gimel
2gamma
adjective
Definition of GAMMA
1
: of, relating to, or being one of three or more closely related chemical substances
2
: third in position in the structure of an organic molecule from a particular group or atom —symbol γ
First Known Use of GAMMA
1896
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