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secondhand: [adjective] received from or through an intermediary : borrowed. derivative.
Second. The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as 86400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60 = 86400).
SECONDHAND definition: 1. owned or used in the past by someone else: 2. learned or heard about from someone else rather…. Learn more.
Jan 18, 2018 · Today, one second is defined as “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”. That’s a mouthful. That number seems random because each and every definition of a second has by necessity been based on the one that came before.
Secondhand definition: not directly known or experienced; obtained from others or from books. See examples of SECONDHAND used in a sentence.
Jun 21, 2024 · second to last: [idiom] done or placed just before the one that comes last.
Jun 27, 2024 · second chance: [noun] an opportunity to try something again after failing one time.
