interplay
backscratch
retroaction
interaction
Newton's third law of motion
third law of motion
law of action and reaction
Newton's third law
back
counterreaction
interreact
reciprocity
react
intermutation
reverberation
relate
repercussion
coreactant
correlativity
interresponse
correlation
equilibrium
postreaction
homocoupling
chemical equilibrium
cross
backaction
recinormal
return
paying back
getting even
pseudoreversible
gain-
counteractive
multireaction
counteractivity
stigmergy
reactive
comovement
converse
heterofunctionalization
reciprocalization
complementarity
topochemistry
crosscoupling
interplaying
in turn
reciprocatively
in kind
harmony