1. An alkaloid medicine (trade name Kavrin) obtained from opium; used to relax smooth muscles; it is nonaddictive
   - papaverine

Type of: muscle relaxant

• rear of tube
• rear window
• rear-end
• rearguard
• rearing
• rearm
• rearmament
• rearmost
• rearrange
• rearrangement
• rearrest
• rearview mirror
• rearward
• rearwards
• reascend
• reason
• reason out
• reasonable
• reasonable care
• reasonableness
• reasonably
• reasoned
• reasoner
• reasoning
• reasoning backward