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[kwawr-ter-ouuh r, -ou-er] /ˈkwɔr tərˈaʊər, -ˈaʊ ər/
a period of 15 minutes.
a point 15 minutes after or before the hour.
Origin of quarter-hour
1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for quarter-hour
Historical Examples
  • You failed to make your quarter-hour check to the traffic-control center, I believe?

    Danger in Deep Space Carey Rockwell
  • For a quarter-hour he could not gather enough vigor to open it.

    Free Air Sinclair Lewis
  • Tell him that the dinner boxes will be ready in quarter-hour.

    The Hound From The North Ridgwell Cullum
  • Finally the defense rested, about a quarter-hour before noon.

    Lone Star Planet Henry Beam Piper and John Joseph McGuire
  • The feats it performs every time it strikes the hour and quarter-hour, can hardly be credited by one who has not seen them.

    Paris: With Pen and Pencil David W. Bartlett
  • A quarter-hour's walking brought her to the cliff of the Couperon.

  • But the moment of his return passed; a quarter-hour of grace; a half-hour of grim magnanimity,—and still no colonel.

    A Chance Acquaintance W. D. Howells
  • The Chancellor shivered and said, 'We should be within a quarter-hour of Greenwich.'

    The Fifth Queen Ford Madox Ford
  • Meanwhile the Germans kept firing away at quarter-hour intervals, when the gun was in action.

    Air Service Boys Over The Rhine Charles Amory Beach
  • Within a quarter-hour he knew that Sssuri was not going wrong.

    Star Born Andre Norton
British Dictionary definitions for quarter-hour


a period of 15 minutes
any of the points on the face of a timepiece that mark 15 minutes before or after the hour, and sometimes 30 minutes after
Derived Forms
quarter-hourly, adverb, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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