1. Driven insane
   - crazed, deranged

See also: insane

• alsatian
• Arctocephalus philippi
• Arctonyx
• Arctonyx collaris
• arctophile
• Arctostaphylos
• Arctostaphylos alpina
• Arctostaphylos andersonii
• Arctostaphylos manzanita
• Arctostaphylos tomentosa
• Arctostaphylos uva-ursi
• Arctotis
• Arctotis stoechadifolia
• Arctotis venusta
• Arcturus
• arcuate
• arcuate artery
• arcuate artery of the kidney
• arcuate vein of the kidney
• arcus
• arcus senilis
• arcus zygomaticus
• ARDA
• Ardea
• Ardea herodius