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