Aetna Choice POS II. Aetna Choice POS II Aexcel Local. Aetna Choice POS II Local. Aetna HMO. Aetna Open Choice PPO. BCBS of Kansas City (PPO) BCBS of Kansas City Freedom Network. BCBS of Kansas City Freedom Network Select.
bastion. n. 1. (Fortifications) a projecting work in a fortification designed to permit fire to the flanks along the face of the wall. 2. any fortified place. 3. a thing or person regarded as upholding or defending an attitude, principle, etc: the last bastion of opposition.
Fortification. a projecting portion of a rampart or fortification that forms an irregular pentagon attached at the base to the main work. 2. a fortified place. 3. anything seen as preserving or protecting some quality, condition, etc.: a bastion of solitude; a bastion of democracy. Origin of bastion.