thiopental sodiumthi·o·pen·tal sodium
a yellowish-white, hygroscopic powder, CHNOSNa, injected intravenously in solution as a general anesthetic and hypnotic
Origin of thiopental sodiumthio- + pent(a)- + -al
A barbiturate, C11H17N2O2SNa, that takes effect rapidly, used to induce general anesthesia, as an anticonvulsant, and for euthanasia. Also called sodium thiopental .
Origin of thiopental sodiumthio- pent(obarbit)al sodium