| 释义 |
m-day
\ˈ ̷ ̷ˌ ̷ ̷\ noun
Usage: usually capitalized M
Etymology: m (initial letter of mobilization) + day
1. : a day on which a military mobilization begins or is postulated (as in a problem in logistics) to begin
2. : the day on which actual hostility breaks out at the commencement of a war |