Noun giantism has 2 senses
  1. giantism, gigantism, overgrowth - excessive size; usually caused by excessive secretion of growth hormone from the pituitary gland
    --1 is a kind of hypertrophy
    --1 has parts: hyperpituitarism
  2. gigantism, giantism - excessive largeness of stature
    --2 is a kind of largeness, bigness
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