1. an intravenous anesthetic drug that has a hypnotic effect; induces relaxation and weakens inhibitions; is believed to induce people to talk freely; [syn: truth serum, truth drug]
WordNet (r) 3.0 (2006):
truth serum
n 1: an intravenous anesthetic drug that has a hypnotic effect;
induces relaxation and weakens inhibitions; is believed to
induce people to talk freely [syn: truth serum, truth
drug]