Associations to the word «Rad»

Wiktionary

RAD, adjective. (slang) Excellent, short for radical.
RAD, noun. (metrology) A non-SI unit of absorbed dose of radiation, equal to 0.01 gray.
RAD, noun. Abbreviation of radian.
RAD, noun. (automotive) (plumbing) (slang) Abbreviation of radiator.

Dictionary definition

RAD, noun. A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.
RAD, noun. The unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees).

Wise words

Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.
William Butler Yeats