gram-, -gram-, -gram, -grammatic, -grammatical, -grammatically, -gramme, -grammic +

(Greek: write, writing, something written, a written record, a recording; letters; words; later, a small weight, a unit of mass in the metric system)

A unit of weight in the metric system from 1797 gramme, borrowing of French gramme, from Late Latin gramma, "small weight"; from Greek gramma, "small weight"; originally, "something written"; from the stem of graphein, "to draw, to write".

—Compiled from information located in;
The Barnhart Dictionary of Etymology; Robert K. Barnhart, Editor;
The H.W. Wilson Company; New York; 1988; page 445.
decagramme (British)
A weight of the metric system; ten grams, equal to about 154.32 grains avoirdupois.
decigramme, dg (British)
A metric measurement of 1/10th of a gram (0.1 gram). Symbol: dg.
1. A treelike figure used to graphically represent a hierarchy.
2. A branched diagram representing the apparent similarity or relationship between taxa; especially, on the basis of their observed overall similarity rather than on their phylogeny.
dextrocardiogram (s) (noun), dextrocardiograms (pl)
That part of an electrocardiogram that is derived from the right ventricle.
1. A figure composed of lines, serving to illustrate a definition or statement, or to aid in the proof of a proposition.
2. An illustrative figure which, without representing the exact appearance of an object, gives an outline or general scheme of it, so as to exhibit the shape and relations of its various parts.
3. A simple, graphic depiction of an idea or object.
A graphic representation, in simplest form, of an object or concept, made up of lines and lacking pictorial elements.
1. A sequence of two adjacent letters or symbols.
2. Two signs or characters combined to express a single articulated sound; such as, ea in "head", or th in "bath".
diskogram, discogram
A roentgenogram (X-ray) of an intervertebral disk into which radio-opaque contrast medium had been injected via direct needle puncture.
dittogram (s) (noun), dittograms (pl)
A letter or a series of letters unintentionally repeated by a writer when reproducing a text: "As a reporter, Jane was under pressure to complete several articles as quickly as possible. Before submitting her work for publication in the newspaper, she saw some dittograms, or written duplications of letters and phrases, and so she corrected them."
A roentgenogram of a diverticulum (a herniation through the muscular wall of a tubular organ; especially, the colon.
A radiograph of the duodenum (the first short section of the small intestine immediately beyond the stomach).
Difficulty in combining into an integrated whole the various symbols comprising a word or phrase.
Pertaining to faults of speech arising from a disease.
A speech defect involving incorrect phrase construction, leading to infantile speech or a telegraphic style; an aphasic disorder that impairs syntax rather than vocabulary; also agrammatism.
E electroretinogram
An electroretinogram which exhibits excitatory characteristics derived from the rods.

Related "writing" word units: glypto-; graph-; scrib-, script-.