- Second - Wikipedia
The second, symbol s, is the SI unit of time It is defined by taking the fixed numerical value of the caesium frequency, Δν Cs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s −1
- SECOND Definition Meaning - Merriam-Webster
The meaning of SECOND is next to the first in place or time How to use second in a sentence
- SECOND | English meaning - Cambridge Dictionary
SECOND definition: 1 immediately after the first and before any others: 2 the position in which a person finishes a… Learn more
- SECOND Definition Meaning | Dictionary. com
Second definition: next after the first; being the ordinal number for two See examples of SECOND used in a sentence
- Second - Definition, Meaning Synonyms - Vocabulary. com
A second may be one-sixtieth of a minute or the item after first If you ask whether you're second in line, the hostess might reply, "Give me a second and I'll tell you " Different meanings of the word second have evolved from the same background, which is the Latin word secundus, which means "next" or "following "
- Second - definition of second by The Free Dictionary
Define second second synonyms, second pronunciation, second translation, English dictionary definition of second n 1 a A unit of time equal to one sixtieth of a minute b The time needed for a cesium-133 atom to perform 9,192,631,770 complete oscillations
- Second - Simple English Wikipedia, the free encyclopedia
A light flashing once per second The second (symbol: s), is a unit of time There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day This tradition dates back to the Babylonian In science, a second is the time it takes for a caesium atom to vibrate 9,192,631,770 (around 9 billion) times Scientists measure the second
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