plural of e-gram

plural of horse gram

plural of black gram

plural of grim-gram

plural of nasty gram

(chemistry) the amount of a substance, in grams, that is numerically equivalent to its equivalent weight

Gram's method of distinguishing the two main groups of bacteria

(medicine, of a bacterium) that is not stained violet by Gram's method

(medicine) A staining technique, using a sequence of crystal violet, iodine and safranine, used to differentiate bacteria into two large groups of species.

(medicine, bacteriology, of a bacterium) That is stained violet by Gram's method