acti - allo
- acting area (spot) lighting
- acting area (spot) lighting
- actinometer
- action correction
- action current
- action potential
- action principle
- activated absorption
- activated atom
- activated cathode
- activated electrode
- activated phosphor
- activated substance
- activating isotope
- activation
- activation cross section
- activation heat
- activator
- active
- active acidity
- active alkali
- active area
- active assay
- active augmentation methods
- active balance
- active balance return loss
- active biological surface
- active block
- active carbon
- active circuit
- active coating
- active coil
- active component
- active component of current
- active conductor
- active constituent
- active cooling surface
- active current
- active defect
- active device
