"military helicopter for taking wounded soldiers to a hospital," 1966, U.S. military, formed from elements of medical evacuation.
updated on December 13, 2018
英语词源词典收录了45867条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。