a rocket-propelled aircraft or spacecraft.
noun 1. a sled propelled along a long track by rocket engines, for testing the effects of high rates of acceleration and deceleration.
noun, Meteorology. 1. a telemeter for gathering data on the atmosphere at very high altitudes, carried aloft by rocket and returned to earth by parachute. rocketsonde (rŏk’ĭt-sŏnd’) An instrument transported to the upper atmosphere by rocket, used to study meteorological conditions. A rocketsonde is capable of measuring and transmitting information to altitudes of about 76,000 […]
noun 1. a 500-pound (225-kg) U.S. cluster bomb, consisting of 247 two-pound (0.9 kg) fragmentation bombs, designed for use against tanks.
noun 1. an exposure of rock in a steep slope or cliff.