An Etymological Dictionary of Astronomy and Astrophysics

A technique in which the thickness, density, or quantity of a material is determined by the amount of radiation it absorbs.

Etymology (EN): Gauging, from → gauge + → -ing, suffix of nouns formed from verbs, expressing the action of the verb or its result.

Etymology (PE): Gazkard, from gaz, → gauge, + kard past stem of kardan “to do, make,” → gauge.