2 words in this vocabulary list
adjective relating to or being a law that retroactively changes the legal consequences of actions that were committed, or relationships that existed, before the enactment of the law
adverb in a manner that applies retroactively
noun RCT stands for Randomized Controlled Trial, a type of scientific experiment often used in medical research to test the effectiveness of treatments or interventions. It is a noun in this context as it refers to a specific type of trial.