1. Of a region of the United States usually including Colorado; Nevada; Utah

See also: western

• anti-terrorist
• anti-TNF compound
• anti-torque rotor
• anti-virus program
• anti-war movement
• antiacid
• antiadrenergic
• antiaircraft
• antiaircraft fire
• antiaircraft gun
• antialias
• antialiasing
• antianxiety agent
• antianxiety drug
• antiapartheid
• antiarrhythmic
• antiarrhythmic drug
• antiarrhythmic medication
• antiauthoritarian
• antibacterial
• antibacterial drug
• antiballistic missile
• antibaryon
• antiberiberi factor
• antibiosis