01 a. Engaged in warfare; fighting; combating; serving as a soldier.
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1.
Engaged in warfare; fighting; combating; serving as a soldier.“At which command the powers militant . . . Moved on in silence.” — Milton.
Phrases & compounds
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.