Obs. or Hist. Forms: 6–7 bastilion, 7 bastillon, 6–9 bastillion. [a. OF. bastillon, -illion, dim. of bastille; see prec.] A small fortress or castle; a fortified tower.
1549. Thomas, Hist. Italy, 101. Buildyng of fortresses and bastilions about Petabubula.
1603. Knolles, Hist. Turks (1621), 82. They gained one of the greatest bastillions … of the citie, called the Angels tower.
1825. Southey, in Q. Rev., XXXII. 385. An assault was made … upon a bastillion by the gate of Codalonga.
