lithium carbonate: a white powder (LiCO3) used in manufacturing glass and ceramics and as a drug; the drug (trade names Lithane or Lithonate or Eskalith) is used to treat some forms of depression and manic episodes of manic-depressive disorder
major tranquilizer: tranquilizer used to treat psychotic conditions when a calming effect is desired
parallel interface: an interface between a computer and a printer where the computer sends multiple bits of information to the printer simultaneously