definition of
G

[1] #1 G n. [gram, gramme, gm, g] a metric unit of weight equal to one thousandth of a kilogram. wn

[2] #2 G n. [guanine] a purine base found in DNA and RNA; pairs with cytosine. wn

[3] #3 G n. [deoxyguanosine monophosphate] one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose). wn

[4] #4 G n. [thousand, one thousand, 1000, M, K, chiliad, grand, thou, yard] the cardinal number that is the product of 10 and 100. wn

[5] #5 G n. [g, gee, g-force] 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. wn