(n) barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions, Syn. Seconal, secobarbital, red devil
(n) barbiturate that is a hygroscopic powder (trade name Pentothal) that is a strong barbiturate that acts rapidly; induces a relaxed state when injected as a general anesthetic, Syn. thiopental sodium, Pentothal, thiopentobarbital sodium