noun A fervent, sometimes militant, supporter or proponent of a party, cause, faction, person, or idea.
noun A member of a band of detached light, irregular troops acting behind occupying enemy lines in the ways of harassment or sabotage; a guerrilla fighter.
noun The commander of a body of detached light troops engaged in making forays and harassing an enemy.
adjective Serving as commander or member of a body of detached light troops.
partisan officer, partisan corps
adjective Adherent to a party or faction; especially, having the character of blind, passionate, or unreasonable adherence to a party.
They were blinded by partisan zeal.
adjective Devoted to or biased in support of a party, group, or cause.
partisan politics
noun A long-handled spear with a triangular, double-edged blade having lateral projections, in some forms also used in boar hunting.