bar·rel·head 
(bărəl-hĕd′)
(bărəl-hĕd′)n.
The flat top of a barrel.
- alphameric
- alphanumeric
- alphanumerical
- alphanumerically
- alpha particle
- alpha privative
- alpha ray
- alpha-receptor
- alpha-synuclein
- alpha-tocopherol
- alpha wave
- Alpheus
- Alphonse
- Alphonse
- Alphonse
- Alphonse Marie Louis de Prat de
- alphorn
- alphorn
- alpine
- alpinism
- alpinist
- alprazolam
- alprostadil
- Alps
- al-Qaeda