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clock-hour

[ klok-ouuhr, -ou-er ]
/ ˈklɒkˌaʊər, -ˌaʊ ər /
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noun
a full 60-minute period, as of class instruction or therapeutic consultation.Compare hour (def. 11).
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?

Origin of clock-hour

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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