mad-apple /madˈa-pl/

1. An aubergine
2. The Dead Sea apple (see under apple)
3. A gallnut produced by the Asiatic gall wasp (Cynips insana)

• water fleas
• water flies
• water flood
• waterflood
• waterflooding
• water floods
• water flow
• water flowers
• water-flowing
• water flows
• water fly
• waterfowl
• waterfowls
• water frame
• water frames
• waterfront
• waterfronts
• water gage
• water gages
• water gall
• water galls
• water gap
• water gaps
• water gas
• water gases