acti - allo
- adsorptive capacity
- advance
- advance a hypothesis
- advance a theory
- advance an idea
- advance angle
- advance coefficient
- advance of periastron
- advance of waves
- advance program
- advance ratio
- advanced Green function
- advanced method
- advanced potential
- advanced stall
- advanced technology
- advanced test reactor
- advanced thermal reactor
- advanced treatment
- advancement of science
- advances in physics
- advantage
- advection
- advection of air
- advective flow
- advective heat transfer
- adverse effect
- adverse pressure gradient
- aeolian vibrations
- aerate
- aerial
- aerial array
- aerial camera
- aerial camera lens
- aerial circuit
- aerial film
- aerial gamma survey
- aerial impedance
- aerial matching
- aerial pattern