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单词 rad
释义

rad1

/rad /
abbreviation
Radian(s).

Rhymes

rad2

/rad /
noun informal
A political radical.Like many university students in those early days of the Whitlam government, I saw myself as a bit of a rad.

Origin

Early 19th century: abbreviation.

rad3

/rad /
noun Physics
A unit of absorbed dose of ionizing radiation, corresponding to the absorption of 0.01 joule per kilogram of absorbing material.The dose equivalent in rems is numerically equal to the absorbed dose in rads multiplied by the quality factor, which, for most medical radiation, is one....
  • The radiation dosage was 5000 rads, similar to what has been used for other domestic species.
  • For example, ordinary first responders are instructed not to enter an affected area to save someone's life if they would accumulate a dose of 25 rads of radiation.

Origin

Early 20th century: acronym from radiation absorbed dose.

rad4

/rad /
adjective informal, chiefly North American
Excellent; impressive: his style is so rad a really rad game...
  • The video was all over the internet, too, and was equally rad.
  • I feel incredibly lucky to be in such a rad work environment with a most excellent group of people.
  • I've skated with a lot of pro skaters and come across lots of rad style, but the best style I've ever witness in my life was this guy, I think his name was Ryan.

Origin

1980s: probably an abbreviation of radical.

rad5

/rad /
noun
Short for radiator.We carried spare water for the rad, a hand pump just in case the Dunlop pressure dropped, and maybe even a canister of petrol....
  • Take care when taking the rad off its wall - brackets.
  • I can always put off doing the woodwork and rad until a later date, although I'd like to get it done fairly soon.

RAD6

abbreviation
(In the UK) Royal Academy of Dance.
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更新时间:2024/12/22 23:17:46