- 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 - Wiktionary, the free dictionary
The second volume in "The Lord of the Rings" series is called "The Two Towers" You take the first one, and I'll have the second 1963 , Margery Allingham , “Eye Witness”, in The China Governess: A Mystery , London: Chatto Windus , →OCLC , page 249 :
- 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 - 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
- What does SECOND mean? - Definitions. net
What does SECOND mean? This dictionary definitions page includes all the possible meanings, example usage and translations of the word SECOND "do I hear a second?" (Parliamentary Procedure) A motion in support of another motion which has been moved in a deliberative body; a motion without a second dies without discussion
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