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)

• under one's thumb
• under one's very nose
• underpaid
• under pain of
• underpainting
• underpaintings
• underpants
• underpart
• underparts
• underpass
• underpasses
• underpassion
• underpassions
• underpay
• underpaying
• underpayment
• underpayments
• underpays
• underpeep
• underpeeped
• underpeeping
• underpeeps
• under penalty of
• underpeopled
• underperform