| 单词 | yoctosecond |
| 释义 | > as lemmasyoctosecond Used in the names of units of measurement to denote a factor of 10−24 (one million million million millionth; one thousandth to the power of eight), as yoctogram, yoctomole, yoctosecond. Symbol y. Π 1991 Rapport de la 10e Session, Commité Consultatif des Uniés (Bureau Internat. des Poids et Mesures) u44 After further discussion along this line the CCU decided as follows:..10−21 zepto [symbol] z... 10−24 yocto [symbol] y. 1994 New Scientist 3 Dec. 81/2 The elementary charge is 1.6 x 10−19 coulombs (160 zeptocoulombs) and the mass of a proton is 1.7 yoctograms. 1996 N.Y. Times Mag. 14 Jan. 12 A yoctosecond, equivalent to .000000000000000000000001—that's 23 zeros, is the smallest designated unit of time. 2004 Nature 29 July 522/2 Their mass-spectrometry approach can detect 800 yoctomoles (800 × 10−24 moles) of des-Arg9-bradykinin. 2006 R. Dawkins God Delusion 155 The ‘inflation’ that physicists postulate as occupying some fraction of the first yoctosecond of the universe's existence. < as lemmas |
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