Dictionary De - En
De - Es
De - Pt| English Dictionary: 'RADIOACTIVE' | by the DICT Development Group |
| 1 result for 'RADIOACTIVE' | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Radio-active \Ra`di*o-ac"tive\, a. [Radio- + active.] (Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. -- {Ra`di*o-ac*tiv"i*ty}, n. | |
