quarter-hour

[ 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

First recorded in 1880–85

Toward night, the quarter-hour of level sun-glare which prevented her seeing the road.

Free Air |Sinclair Lewis
You failed to make your quarter-hour check to the traffic-control center, I believe?

Danger in Deep Space |Carey Rockwell
When he emerged a quarter-hour after, Joel was actually smiling.

Five Little Peppers at School |Margaret Sidney
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

But that event had flashed before his eyes, and in a quarter-hour was gone, save in his memory.

Bonaventure |George Washington Cable

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

quarter-hourly, adverb, adjective