I. noun Etymology: Middle English, from Late Latin, from Greek, of Semitic origin; akin to Hebrew gīmel gimel Date: 15th century 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. microgram II. adjective Date: 1896 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

New Collegiate Dictionary. 2001.

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  • gamma — [ ga(m)ma ] n. m. • transcrit 1824; mot gr. 1 ♦ Troisième lettre de l alphabet grec (Γ, γ), correspondant au G [ g ] . 2 ♦ POINT GAMMA.Astron. Intersection de l écliptique avec le plan de l équateur. ⇒ vernal. Arg. scol. Fête de l École… …   Encyclopédie Universelle

  • Gamma — (uppercase Gamma;, lowercase gamma;; el. Γάμμα) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. It was derived from the Phoenician letter Gimel Ґ. In Modern Greek, it represents either a voiced… …   Wikipedia

  • gamma — gam ma (g[a^]m m[.a]), n. The third letter ([Gamma], [gamma] = Eng. G) of the Greek alphabet. [1913 Webster] …   The Collaborative International Dictionary of English

  • gamma — third letter of the Greek alphabet, c.1400, from Gk. gamma, from Phoenician gimel, lit. camel (see CAMEL (Cf. camel)); so called for a fancied resemblance of its shape to some part of a camel. Gamma rays (1903) originally were thought to be a… …   Etymology dictionary

  • gamma — s.f. [dal nome della lettera gr. Γ, gamma maiusc., che nella notazione musicale gr. indicava il suono fondamentale (sol ) nel sistema teorizzato da Pitagora]. 1. (mus.) a. [successione ordinata dei suoni di un sistema musicale] ▶◀ scala… …   Enciclopedia Italiana

  • gamma — {{/stl 13}}{{stl 8}}rz. ż Ia, CMc. gammie, blm {{/stl 8}}{{stl 7}} trzecia litera alfabetu greckiego <gr.>{{/stl 7}}{{stl 17}}ZOB. {{/stl 17}}{{stl 7}}promienie [promieniowanie] gamma {{/stl 7}} …   Langenscheidt Polski wyjaśnień

  • gamma — (Del gr. γάμμα). 1. f. Tercera letra del alfabeto griego (Γ, γ), que corresponde a g del latino. 2. Unidad de medida, no aceptada por el Sistema Internacional de unidades, equivalente a una millonésima de gramo. ☛ V. rayos gamma …   Diccionario de la lengua española

  • gamma — ► NOUN 1) the third letter of the Greek alphabet ( , ), transliterated as ‘g’. 2) Brit. a third class mark given for a piece of work. 3) (before another noun ) relating to gamma rays. ORIGIN Greek …   English terms dictionary

  • Gamma — (gr.), 1) Name des griechischen G., s.d.; 2) (Mus.), so v.w. Gamme …   Pierer's Universal-Lexikon

  • Gamma — Gamma, der 3. Buchstabe des griech. Alphabets (Γ, γ), unser g; in der Musik früher der tiefste Ton des Systems, das große G …   Kleines Konversations-Lexikon

  • Gamma — Gamma, das alte Tonsystem des Guido von Arezzo; die mit Noten bezeichnete Scala vom Tonumfang eines Instruments, besonders Biasinstruments, vom tiefsten bis zum höchsten Ton, zugleich mit Angabe der Art, wie jeder einzelne Ton gegriffen werden… …   Herders Conversations-Lexikon

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