Fortification agate

from The Collaborative International Dictionary of English v.0.48
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.
      [1913 Webster]

   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.
      [1913 Webster]

   {Fortification agate}, Scotch pebble.

   Syn: Fortress; citadel; bulwark. See {Fortress}.
        [1913 Webster]
    

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