1. A kind of artificial heart that has been used with some success
   - Jarvik heart

Type of: artificial heart

• downstream
• downstroke
• downswing
• downtick
• downtime
• downtown
• downtrend
• downtrodden
• downturn
• downward
• downward-arching
• downward-sloping
• downwardly
• downwards
• downwind
• downy
• downy ash
• downy birch
• downy brome
• downy bromegrass
• downy cheat
• downy chess
• downy ground cherry
• downy haw
• downy manzanita