a fr - addi
- a frame
- a pole
- a register
- abbreviated code
- abbreviated dialing
- abend
- aberration
- abnormal current
- abnormal end of task
- abnormal glow discharge
- abnormal radiation
- abnormal reflection
- abnormal reflections
- abnormal voltage
- abrasion
- abrasion resistance
- abrasive
- abrasive dust
- abrasive jet machining
- abrasive jet trimming
- abrasive paste
- abrasive trimming
- abrupt change
- abrupt degradation
- abrupt heterojunction
- abrupt junction
- abruption
- abscissa
- absolute
- absolute accuracy
- absolute block
- absolute calibration
- absolute capacity
- absolute coding
- absolute constant
- absolute delay
- absolute electrical units
- absolute electrode potential
- absolute electromagnetic unit
- absolute electrometer
