retroaction

ret·ro·ac·tion

noun \ˌre-trō-ˈak-shən\

Definition of RETROACTION

1

[retroactive] : retroactive operation (as of a law or tax)

2

[retro- + action] : a reciprocal action : reaction

First Known Use of RETROACTION

circa 1738

Rhymes with RETROACTION

abreaction, benefaction, chain reaction, common fraction, complex fraction, counteraction, dark reaction, direct action, interaction, liquefaction, malefaction, overaction, petrifaction, police action, proper fraction, putrefaction, rarefaction, satisfaction, simple fraction, single-action, stupefaction, tumefaction