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.

misogrammatist (s) (noun), misogrammatists (pl)

Anyone who hates having to learn letters, grammar (structures of language) or having to study anything of a similar nature: Holly’s favorite subject at school was art and she was very talented in it; so, when she was allowed to, she dropped German, knowing that she, as a misogrammatist, was very poor at memorizing certain verb forms, adjective endings, pronunciations, etc. in this language.

monogram

Two or more letters, as initials, formed into a design to be placed on clothing, notepaper, etc., or as a crest.

monogrammatic

A reference to a design composed of one or more letters, typically the initials of a name, used as an identifying mark.

morphographic map, physiographic diagram, landform map

A small-scale map showing landforms by the systematic application of a standardized set of simplified pictorial symbols that represent the appearance such forms would have if viewed obliquely from the air at an angle of about 45°.

myogram

A graphical recording of muscle activity.

myriagram (s) (noun), myriagrams (pl)

Outdated, a unit of measure equivalent to 10,000 grams or ten kilograms; myg: The myriagram used to be used during the 19th century as a substitute for the formerly accepted American system of "quarter", or 25% of something.

nanogram

1. One-billionth of a gram (10^-9 g).
2. One billionth (1/1,000,000,000) gram: NG.

nephelogram

A photograph of a cloud.

nephogram

A photograph of a cloud.

nephrogram

Radiographic examination of the kidney after an intravenous injection of a water-soluble iodinated contrast material; also, the diffuse opacification of the renal parenchyma following such an injection, an indication of renal blood flow and glomerular filtration.

A persistent nephrogram indicates obstruction of kidney drainage.

odontogram

A personal record of bite forms of teeth used as personal identification.

one-time programmable tag

Also called a field-programmable tag.

An RFID tag that can be written to once and read many times (see WORM).

onychogram

A recording of the nail pulse and capillary circulation.

ophthalmogram

A written description of the eyes; especially, during reading.

optogram

An image of external objects fixed on the retina by the photochemical action of light on the visual purple.