Editing List of effects (section)

==A==
*[[Abscopal effect]] (cancer treatments) (immune system) (medical treatments) (radiation therapy)  
*[[Accelerator effect]] (economics)
*[[Accordion effect]] (physics) (waves)
*[[Acousto-optic effect]] (nonlinear optics) (waves)
*[[Additive genetic effects]] (genetics)
*[[Aharonov–Bohm effect]] (quantum mechanics)
*[[Al Jazeera effect]] (Al Jazeera) (media issues)
*[[Alienation effect]] (acting techniques) (Bertolt Brecht theories and techniques) (film theory) (metafictional techniques) (theatre)
*[[Allais effect]] (fringe physics)
*[[Allee effect]] (biology)
*[[Ambiguity effect]] (cognitive biases)
*[[Anrep effect]] (cardiology) (medicine)
*[[Antenna effect]] (digital electronics) (electronic design automation)
*[[Anti-greenhouse effect]] (atmospheric dynamics) (atmospheric science) (astronomy) (planetary atmospheres)
*[[Askaryan effect]] (particle physics)
*[[Asymmetric blade effect]] (aerodynamics)
*[[Audience effect]] (psychology) (social psychology)
*[[Auger effect]] (atomic physics) (foundational quantum physics)
*[[Aureole effect]] (atmospheric optical phenomena) (scientific terminology)
*[[Autler–Townes effect]] (atomic, molecular, and optical physics) (atomic physics) (quantum optics)
*[[Autokinetic effect]] (vision)
*[[Avalanche effect]] (cryptography)
*[[Averch–Johnson effect]] (economics)