gamma

1 of 2

noun

gam·​ma ˈga-mə How to pronounce gamma (audio)
plural gammas
1
: the 3rd letter of the Greek alphabet see Alphabet Table
2
: something or someone designated with the name gamma or the Greek letter γ especially denoting the third in position, order, or class
gamma hydroxybutyrate
3
: the degree of contrast of a developed photographic image or of a video image
4
: a unit of magnetic flux density equal to one nanotesla
5
: gamma ray
gamma counter
6

gamma

2 of 2

adjective

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

Examples of gamma in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
In between, Usher’s ninth studio album Coming Home arrived — the first release on his indie label Mega, co-founded with L.A. Reid and in association with Larry Jackson’s gamma. Gail Mitchell, Billboard, 8 Oct. 2024 Additionally, the Hero 13 Black now supports a hybrid-log gamma HDR option with a wider color gamut, 10-bit depth, and Rec. 2100 color space, meeting broadcast HDR standards. Prakhar Khanna, Forbes, 26 Sep. 2024
Adjective
The company expects these programs to lead to full a gamma version and full production runs by the end of 2024. IEEE Spectrum, 31 Jan. 2023 And the worldwide shortage of gamma ferric oxide has brought tape production to a crawl. David Grossman, Popular Mechanics, 11 Oct. 2019 See all Example Sentences for gamma 

Word History

Etymology

Noun

Middle English, borrowed from Latin, borrowed from Greek gȧmma, borrowed from Phoenician *gaml-, perhaps with the original sense "throwing stick"

Adjective

attributive use of gamma entry 1

First Known Use

Noun

15th century, in the meaning defined at sense 1

Adjective

1834, in the meaning defined at sense 1

Time Traveler
The first known use of gamma was in the 15th century

Dictionary Entries Near gamma

Cite this Entry

“Gamma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gamma. Accessed 29 Nov. 2024.

Kids Definition

gamma

noun
gam·​ma
ˈgam-ə
: the third letter of the Greek alphabet
Γ or γ

Medical Definition

gamma

1 of 2 noun
gam·​ma ˈgam-ə How to pronounce gamma (audio)
1
: the third letter of the Greek alphabet
symbol Γ or γ
2
: a unit of magnetic flux density equal to one nanotesla
3
: gamma ray
usually used as the attributive form of gamma ray
gamma counter
4

gamma

2 of 2 adjective
variants or γ-
1
: of or relating to one of three or more closely related chemical substances
the gamma chain of hemoglobin
γ-yohimbine
used somewhat arbitrarily to specify ordinal relationship or a particular physical form and especially one that is allotropic, isomeric, or stereoisomeric (as in gamma benzene hexachloride)
2
: third in position in the structure of an organic molecule from a particular group or atom
also : occurring at or having a structure characterized by such a position
γ-hydroxy acids
3
of streptococci : producing no hemolysis on blood agar plates

More from Merriam-Webster on gamma

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