H-hour
[ eych-ouuhr, -ou-er ]
/ ˈeɪtʃˌaʊər, -ˌaʊ ər /
noun Military.
the time, usually unspecified, set for the beginning of a planned attack.
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British Dictionary definitions for H-hour
H-hour
noun
military the specific hour at which any operation commencesAlso called: zero hour
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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