The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom (at 0 Kelvin).
Synonyms for Second
On this page, you will find 30 slang terms related to A second. Some of the top words include: c, zeeky boogy doog, LASER, 3E8, minute, and 25 more.