retroaction

noun

ret·​ro·​ac·​tion ˌre-trō-ˈak-shən 

1

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

2

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

Word History

First Known Use

1728, in the meaning defined at sense 1

Rhymes for retroaction

• benefaction
• counteraction
• interaction
• liquefaction
• putrefaction
• rarefaction
• satisfaction
• stupefaction
• tumefaction
• abstraction
• attraction
• compaction