g Meaning, Definition & Usage

noun a metric unit of weight equal to one thousandth of a kilogram
gramme; gm; gram.
noun a purine base found in DNA and RNA; pairs with cytosine
guanine.
noun one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
deoxyguanosine monophosphate.
noun the cardinal number that is the product of 10 and 100
yard; thou; thousand; grand; M; chiliad; one thousand; K; 1000.
noun a unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected when it is accelerated
g-force; gee.
noun a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes
gigabyte; GB.
noun a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
gibibyte; GiB; gigabyte; GB.
noun (physics) the universal constant relating force to mass and distance in Newton's law of gravitation
universal gravitational constant; gravitational constant; constant of gravitation.
noun the 7th letter of the Roman alphabet

G is the seventh letter of the English alphabet, and a vocal consonant. It has two sounds; one simple, as in gave, go, gull; the other compound (like that of j), as in gem, gin, dingy. See Guide to Pronunciation, §§ 231-6, 155, 176, 178, 179, 196, 211, 246. The form of G is from the Latin, in the alphabet which it first appeared as a modified form of C. The name is also from the Latin, and probably comes to us through the French. Etymologically it is most closely related to a c hard, k y, and w; as in corn, grain, kernel; kin L. genus, Gr. E. garden, yard; drag, draw; also to ch and h; as in get, prehensile; guest, host (an army); gall, choler; gust, choose. See C.
(Mus.) G is the name of the fifth tone of the natural or model scale; -- called also sol by the Italians and French. It was also originally used as the treble clef, and has gradually changed into the character represented in the margin. See Clef. G♯ (G sharp) is a tone intermediate between G and A.