위약이 · 위약을
placebo
Example
참가자의 절반은 진짜 약 대신 위약을 먹었어요.
Half of the participants took a placebo instead of the real drug.
Word parts
위 fake+약 medicine
Literally 'fake medicine'.
Good to know
Homonym warning: 위약 (違約) also means breach of contract, as in 위약금 (cancellation fee).
Related words