Aal·to 
(ältō), Alvar 1898-1976.
(ältō), Alvar 1898-1976. Finnish architect and furniture designer noted for his use of contrasting materials. His designs include the Abbey Library in Mount Angel, Oregon (1970).
- ballistic missile
- ballistics
- ballistocardiogram
- ballistocardiograph
- ballistocardiography
- ball joint
- ball lightning
- ball of fire
- ball of wax
- ballon
- ballonet
- balloon
- balloon angioplasty
- balloon flower
- balloonist
- balloon mortgage
- balloon payment
- balloon sail
- balloon tire
- balloon vine
- ballot
- ballot box
- balloter
- ballottement
- ballpark