n. /kown"teuhr muyn'/ ; v. /kown'teuhr muyn", kown"teuhr muyn'/ , n. , v. , countermined, countermining .
n.
1. Mil. a mine intended to intercept or destroy an enemy mine.
2. a counterplot.
v.t.
3. to oppose by a countermine.
v.i.
4. to make a countermine.
5. Mil. to intercept or destroy enemy mines.
[ 1425-75; late ME; see COUNTER-, MINE 2 ]