minuteman (n.)youdaoicibaDictYouDict[minuteman 词源字典]
U.S. history, one of a class of militia available for immediate service (i.e. "ready in a matter of minutes"), 1774. As the name of a type of ICBM, from 1961, so called because they could be launched with very little preparation.[minuteman etymology, minuteman origin, 英语词源]