Of or relating to Parthia, the Parthians, or their language; characteristic of the Parthians.

Chiefly Military. Moved forward; standing or being to the front; esp. inadvanced post, advanced works. See also advanced guard n. at compounds.

Mil. That turns an enemy's position.

Military. Designating an operation involving the convergence of two forces from opposite directions on an enemy position; chiefly in pincer movement…