QED

1. Quantum electrodynamics
2. Quod erat demonstrandum (Latin), which was to be demonstrated (or proved; also q.e.d.)

• steepening
• steepens
• steeper
• steepers
• steepest
• steepeup
• steepier
• steepiest
• steepiness
• steepinesses
• steeping
• steepish
• steeple
• steeplebush
• steeplebushes
• steeplechase
• steeplechased
• steeplechaser
• steeplechasers
• steeplechases
• steeplechasing
• steeplechasings
• steeple-crown
• steeple-crowned
• steeple-crowns