φάλαγξ φάλαγξ (φᾰ), αγγος, a line of battle, battle-array, Il.; mostly in pl. the ranks, Il., Hes. the phalanx, i. e. the heavy infantry (ὁπλῖται) in battle-order, Xen., etc.: the formation of the phalanx differed; the Spartan line at Tegea was eight deep, Thuc.: the Theban at Delium twenty-five, Thuc.; the phalanx was brought to perfection by Philip of Macedon. for the main body, centre, as opp. to the wings (κέρατα) , Xen. a camp, Xen. a round piece of wood, a trunk, log, Hdt. a venomous spider (cf. φαλάγγιον) , Ar. deriv. uncertain