Meaning of DURATION in English

DURATION

n. 1 the length of time for which something continues. 2 a specified length of time (after the duration of a minute). for the duration 1 until the end of the war. 2 for a very long time. durational adj.

[ ME f. OF f. med.L duratio -onis (as DURANCE) ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.