Also found in: Acronyms.
rocket-assisted torpedo[′räk·ət ə¦sis·təd tȯr′pēd·ō]
A torpedo designed to be fired into the air by rocket and to drop into the water by parachute; the torpedo then seeks its underwater target by a special homing device. Abbreviated RAT.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.