Its most accurate definition is:
"the duration of 9,192,631,770 periods of the radiation corresponding to the
transition between two hyperfine levels of cesium-133 in the ground state";
what unit of time is it?
Etymology, Etymology, and more Etymology
as well as grammar, usage, euphemism, slang, jargon, semantics, linguistics, neologism, idiom, cant, and argot.
The critically-acclaimed board game
consists of tough questions about the nuances of the English language.
A Republican physicist calculated that
Bill Clinton was president for exactly 2.319 x 1015 hyperfine, ground-state
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