be·ta-en·dor·phin 
(bā′tə-ĕn-dôrfĭn, bē′-)
(bā′tə-ĕn-dôrfĭn, bē′-)n.
An endorphin produced by the pituitary gland that is a potent pain suppressant.
- field corn
- field day
- field effect transistor
- field emission
- fielder
- fielder's choice
- field event
- fieldfare
- field glass
- field goal
- field-grade officer
- field guide
- field hand
- field hockey
- field hospital
- field house
- Fielding
- field-ion microscope
- field jacket
- field lens
- field magnet
- field marshal
- field mouse
- field officer
- field of fire