"effect" - key terms from Wikipedia

adverse effect
bandwagon effect
butterfly effect
bystander effect
casimir effect
cause and effect
cooling effect
coriolis effect
direct effect
domino effect
doppler effect
effect
effect	size
fear effect
field effect	transistor
flynn effect
founder effect
greenhouse effect
ground effect
hall effect
hall effect	sensor
halo effect
hawthorne effect
income effect
josephson effect
karma and effect
magnus effect
mass effect
meissner effect
mozart effect
observer effect
photoelectric effect
piezoelectric effect
placebo effect
proximity effect
quantum hall effect
raman effect
rebound effect
reggie and the full effect
runaway greenhouse effect
seebeck effect
side effect
skin effect
sound effect
substitution effect
tesla effect
venturi effect
westermarck effect
wing in ground effect
zeeman effect