CLOCK-HOUR
Meaning of CLOCK-HOUR in English
/klok"oweur', -ow'euhr/ , n.
a full 60-minute period, as of class instruction or therapeutic consultation. Cf. hour (def. 11).
[ 1870-75 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012