truth serum

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an intravenous anesthetic drug that has a hypnotic effect;
induces relaxation and weakens inhibitions;
is believed to induce people to talk freely
• Syn:
truth drug
• Hypernyms:
intravenous anesthetic
• Hyponyms:
amobarbital, thiopental, thiopental sodium, thiopentobarbital sodium, Pentothal