英语词汇“gamma”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

gam•ma n. [countable], pl. -mas.

the third letter of the Greek alphabet (&Ggr, γ).

gam•ma n.

the third letter of the Greek alphabet (Γ, γ).
the consonant sound represented by this letter.
the third in a series of items.
(cap.) [Astron.]a star that is usually the third brightest of a constellation:The third brightest star in the Southern Cross is Gamma Crucis.
a unit of weight equal to one microgram.
[Physics.]a unit of magnetic field strength, equal to 10-⁵ gauss.
[Photog.]a measure of the degree of development of a negative or print.
[Television.]an analogous numerical indication of the degree of contrast between light and dark in the reproduction of an image in television.
[Chiefly Brit.]a grade showing that an individual student is in the third, or lowest, of three scholastic sections in a class. Cf. alpha (def. 7), beta (def. 8).

Greek gámma

Collins Concise English Dictionary © HarperCollins Publishers::

gamma /ˈɡæmə/ n

the third letter in the Greek alphabet (Γ, γ), a consonant, transliterated as g. When double, it is transcribed and pronounced as ng
the third highest grade or mark, as in an examination
a unit of magnetic field strength equal to 10^–5 oersted. 1 gamma is equivalent to 0.795 775 × 10^–3 ampere per metre
the numerical value of the slope of the characteristic curve of a photographic emulsion or television camera; a measure of the contrast reproduced in a photographic or television image
(modifier) involving or relating to photons of very high energy: a gamma detector
relating to one of two or more allotropes or crystal structures of a solid: gamma iron
relating to one of two or more isomeric forms of a chemical compound, esp one in which a group is attached to the carbon atom next but one to the atom to which the principal group is attached

Etymology: 14th Century: from Greek; related to Hebrew gīmel third letter of the Hebrew alphabet (probably: camel)

单词	gamma
释义	WordReference Random House Learner's Dictionary of American English © 2024 gam•ma /ˈgæmə/USA pronunciation n. [countable], pl. -mas. the third letter of the Greek alphabet (&Ggr, γ). WordReference Random House Unabridged Dictionary of American English © 2024 gam•ma (gam′ə),USA pronunciation n. the third letter of the Greek alphabet (Γ, γ). the consonant sound represented by this letter. the third in a series of items. (cap.) [Astron.]a star that is usually the third brightest of a constellation:The third brightest star in the Southern Cross is Gamma Crucis. a unit of weight equal to one microgram. [Physics.]a unit of magnetic field strength, equal to 10-⁵ gauss. [Photog.]a measure of the degree of development of a negative or print. [Television.]an analogous numerical indication of the degree of contrast between light and dark in the reproduction of an image in television. [Chiefly Brit.]a grade showing that an individual student is in the third, or lowest, of three scholastic sections in a class. Cf. alpha (def. 7), beta (def. 8). Greek gámma Collins Concise English Dictionary © HarperCollins Publishers:: gamma /ˈɡæmə/ n the third letter in the Greek alphabet (Γ, γ), a consonant, transliterated as g. When double, it is transcribed and pronounced as ng the third highest grade or mark, as in an examination a unit of magnetic field strength equal to 10^–5 oersted. 1 gamma is equivalent to 0.795 775 × 10^–3 ampere per metre the numerical value of the slope of the characteristic curve of a photographic emulsion or television camera; a measure of the contrast reproduced in a photographic or television image (modifier) involving or relating to photons of very high energy: a gamma detector relating to one of two or more allotropes or crystal structures of a solid: gamma iron relating to one of two or more isomeric forms of a chemical compound, esp one in which a group is attached to the carbon atom next but one to the atom to which the principal group is attached Etymology: 14th Century: from Greek; related to Hebrew gīmel third letter of the Hebrew alphabet (probably: camel)
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