1. Hardy deciduous vine having large leaves and flowers with the calyx tube curved like the bowl of a pipe
   - Dutchman's-pipe, pipe vine, Aristolochia macrophylla

Type of: Aristolochia clematitis, birthwort

• alteration
• alterative
• altercate
• altercation
• altered
• altering
• alterity
• altern
• Alternanthera
• Alternanthera philoxeroides
• alternate
• alternately
• alternating
• alternating current
• alternating electric current
• alternation
• alternation of generations
• alternative
• alternative birth
• alternative birthing
• alternative energy
• alternative medicine
• alternative pleading
• alternatively
• alternator