from The American Heritage® Dictionary of the English Language, 5th Edition.

  • abbreviation yoctosecond

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun metrology Symbol for the yoctosecond, an SI unit of time equal to 10−24 seconds.


Sorry, no etymologies found.


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  • Lists: nil = \n. \c. n cons x xs = \n. \c. c x xs List a x = ξL (\p. p nil ⇒ ξU (\ys. p ys ⇒ ξa (\y. p (cons y ys))) ⇒ p x)

    Planet Haskell 2009

  • Carlos Salcido and Ricardo Osorio, who both play in Germanys top flight, bring European pedigree and ample experience.

    The Earth Times Online Newspaper 2010

  • I also always read the "ys" at the end of Daenerys and Viserys as "eez".

    HBO confirms remainder of cast 2009

  • And if they can't get b'ys 'work they'll do girls' work.

    The Widow O'Callaghan's Boys Gulielma Zollinger

  • "Na, na, sir," she said; "it wad be to learn w'ys 'at wadna be fittin' a puir lad like him."

    Sir Gibbie George MacDonald 1864

  • If you can't wait until the end of March or so to get your hands on the dozen-core "ys"

    The Register Team Register 2010

  • Within sixty days from the making of such deposit the To apply for corporation shall apply to the board of aldermen of the srxty da'ys'from city of Boston for a route of not less than four or more ™ -- king deposit. than seven miles of double track in said city, exclusive of subways, over locations hereinbefore granted.

    Acts and resolves passed by the General Court 1663

  • Our captain cries, "Stand by, my b'ys 'out of the ice we'll have to go!

    Come All Ye Jolly Ice-Hunters 2000

  • I'll warrant them delivery b'ys 'horses ain't feelin' ten years younger, anyway. "

    The Widow O'Callaghan's Boys Gulielma Zollinger

  • They wore working away, sir, last night at some of the b'ys 'hammicks; and one of 'em yelled out that they was nibblin' their toes! "

    Young Tom Bowling The Boys of the British Navy John B. [Illustrator] Greene


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  • Plural of the letter y.

    December 8, 2007