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
carbonate: a salt or ester of carbonic acid (containing the anion CO3)
neem cake: residue after oil is pressed from neem seeds