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
matter: that which has mass and occupies space
fantan: a Chinese gambling game; a random number of counters are placed under a bowl and you gamble on how many will be left (0, 1, 2, or 3 modulo 4)