单词 | ballista |
释义 | bal·lis·ta ![]() n. pl. bal·lis·tae (-tē′) An ancient and medieval engine of warfare, usually having a design similar to a crossbow, used to hurl heavy projectiles. [Latin, from Greek ballistēs, from ballein, to throw; see gwelə- in the Appendix of Indo-European roots.] |
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