Fortification \For`ti*fi*ca"tion\, n. [L. fortificatio : cf. F. fortification.]

1. The act of fortifying; the art or science of fortifying places in order to defend them against an enemy.

2. That which fortifies; especially, a work or works erected to defend a place against attack; a fortified place; a fortress; a fort; a castle.

Fortification agate, Scotch pebble.

Syn: Fortress; citadel; bulwark. See Fortress.

Source: Webster's Revised Unabridged Dictionary (1913)