The Collaborative International Dictionary of English v.0.48:

-gram \-gram\ (-gr[a^]m). [Gr. gra`mma a thing drawn or written,
   a letter, fr. gra`fein to draw, write. See Graphic.]
   A suffix indicating something drawn or written, a drawing,
   writing; -- as, monogram, telegram, chronogram.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gram \Gram\ (gr[a^]m), a. [AS. gram; akin to E. grim. [root]35.]
   Angry. [Obs.] --Havelok, the Dane.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gram \Gram\, n. [Pg. gr[~a]o grain. See Grain.] (Bot.)
   The East Indian name of the chick-pea (Cicer arietinum) and
   its seeds; also, other similar seeds there used for food.
   Gram

The Collaborative International Dictionary of English v.0.48:

Gram \Gram\, Gramme \Gramme\ (gr[a^]m), n. [F. gramme, from Gr.
   gra`mma that which is written, a letter, a small weight, fr.
   gra`fein to write. See Graphic.]
   The unit of mass or weight in the metric system. It was
   intended to be exactly, and is very nearly, equivalent to the
   weight in a vacuum of one cubic centimeter of pure water at
   its maximum density. It is equal to 15.432 grains. See
   Grain, n., 4.
   [1913 Webster]

   Gram degree, or Gramme degree (Physics), a unit of heat,
      being the amount of heat necessary to raise the
      temperature of one gram of pure water one degree
      centigrade.

   Gram equivalent (Electrolysis), that quantity of the metal
      which will replace one gram of hydrogen.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mung \Mung\ (m[u^]ng), n. [Hind. m[=u]ng.] (Bot.)
   Green gram, a kind of legume (pulse) (Vigna radiata syn.
   Phaseolus aureus, syn. Phaseolus Mungo), grown for food
   in British India; called also gram, mung bean, Chinese
   mung bean, and green-seeded mung bean. It is an erect,
   bushy annual producing edible green or yellow seeds, and
   edible pods and young sprouts. --Balfour (Cyc. of India).
   [1913 Webster]

WordNet (r) 3.0 (2006):

gram
    n 1: a metric unit of weight equal to one thousandth of a
         kilogram [syn: gram, gramme, gm, g]
    2: Danish physician and bacteriologist who developed a method of
       staining bacteria to distinguish among them (1853-1938) [syn:
       Gram, Hans C. J. Gram]

The Free On-line Dictionary of Computing (30 December 2018):

GRAM

   An extension of BNF used by the SIS compiler generator.

   ["SIS - Semantics Implementation System", P.D. Mosses, TR
   DAIMI MD-30, Aarhus U, Denmark].

   (1995-01-23)