透光度，透射比：①分析化学中为待检溶液透光度(I)与纯溶剂或其他参照液透光度(I。)之比：I／I。；②物理学上的I／I。为物体通过的放射能除以入射放射能；略作T- ballism
- ballismus
- ballistic
- ballistics
- ballistocardiogram
- ballistocardiograph
- ballistocardiography
- balloon
- ballooning
- ballotable
- ballottement
- Ball's valve
- balm
- Balme's cough
- balneology
- balneotherapeutics
- balneotherapy
- Balnetar
- balneum
- balometer
- Balopticon
- balsam
- Balsamodendron
- Balser's fatty necrosis
- Baltimore