| 词源 |
ballistic adj.1775, "pertaining to construction and use of thrown objects," ultimately from Greek ballein "to throw" (from PIE root *gwele- "to throw, reach"). Of rockets or missiles (ones that are guided while under propulsion, but fall freely), from 1949. Ballistic missile is attested from 1954; they attain extreme heights, hence figurative expression go ballistic (1981) "become irrationally angry." updated on October 03, 2022 |