retrorocket

n. 制动[减速]火箭系统

词形变化

retrorockets 复数 retrorockets

别名

retro retro-rocket retro rocket

释义与例句

n.
  1. 1.

    A small rocket engine on a larger rocket or spacecraft, designed to slow or reverse its motion.

词汇关系

名词

上位词 2

rocket rocket engine

词源

From retro- + rocket.

来源：wiktionary