in middle-age writers, an axe with two edges, or which cuts either way; or a missive weapon pointed at both ends. Walsingham represents the securis bisacuta as peculiar to the Scottish nation. See BATTLE-Axe.

BISBÆA, a feast celebrated by the Messapii after the pruning of their vines, to obtain of the gods that they might grow again the better. The word is formed from βασια, used by some for a vine.