rad

rad1
abbreviation for
  1. radian(s)
    同 radian 或radians

rad2
noun
  1. (informal)a political radical
    (非正式)政治激进分子
语源
  1. early 19th cent.: abbreviation

rad3
noun
  1. (Physics)a unit of absorbed dose of ionizing radiation, corresponding to the absorption of 0.01 joule per kilogram of absorbing material
    (物理)拉德
语源
  1. early 20th cent.: acronym from radiation absorbed dose

rad4
adjective
  1. (informal, chiefly US)excellent: impressive
    (非正式,主美)卓越的,极好的;感人的,激动人心的
    his style is so rad.
    他的风格让人难忘。
    a really rad game.
    真是一场激动人心的比赛。
语源
  1. 1980s: probably an abbreviation of radical

rad5
noun
  1. short for radiator
    radiator 的简称
英语宝典
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