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NCI Dictionary of Cancer Terms


cottonseed meal toxin  listen  (KAH-tun-SEED meel TOK-sin)

  A substance being studied in the treatment of several types of cancer. It comes from the seed of the cotton plant (Gossypium). It blocks the growth of cells and may kill cancer cells. Cottonseed meal toxin may also act as a male contraceptive (a type of birth control). Also called gossypol.