Webster's Revised Unabridged Dictionary · 1913

Militant

Militant , adjective

[Latin militans, -antis, present participle of militare to be soldier: compare French militant. See Militate.]

Engaged in warfare; fighting; combating; serving as a soldier.
At which command the powers militant... Moved on in silence. — Milton
Collocations (1)
Church militant , the Christian church on earth, which is supposed to be engaged in a constant warfare against its enemies, and is thus distinguished from the church triumphant, in heaven.