释义 |
rad I. \ˈrad\ adjective Etymology: Middle English, from Old English hræd — more at rathe dialect : quick, ready, eager; also : elated, exhilarated II. adjective Etymology: Middle English, of Scandinavian origin; akin to Old Norse hræddr afraid, hrathr quick, rash — more at rathe Scotland : afraid III. noun (-s) Etymology: short for radiation : a unit of absorbed dose of ionizing radiation equal to an energy of 100 ergs per gram of irradiated material IV. abbreviation 1. radial 2. radian 3. radiant 4. radiator 5. radical 6. radio 7. radium 8. radius 9. [Latin radix] root V. \ˈrad\ adjective Etymology: short for radical (herein) slang : cool 8 |