vegetarianism

vegetarianism
    n 1: a diet excluding all meat and fish
    

Vegetarianism \Veg`e*ta"ri*an*ism\, n.
   The theory or practice of living upon vegetables and fruits.
   [1913 Webster]
    

102 Moby Thesaurus words for "vegetarianism":
      Encratism, Friday, Lenten fare, Pythagoreanism, Pythagorism,
      Rechabitism, Shakerism, Spartan fare, Stoicism, abstainment,
      abstemiousness, abstention, abstinence, acid-ash diet,
      allergy diet, appetite, asceticism, avoidance, banyan day,
      bland diet, calorie chart, calorie counter, cannibalism,
      carnivorism, carnivority, carnivorousness, celibacy, chastity,
      chewing, consumption, continence, cropping, deglutition, devouring,
      devourment, diabetic diet, diet, diet book, dietary, dietetics,
      dieting, dining, eating, epulation, eschewal, fast, feasting,
      feeding, fish day, fruitarianism, gluttony, gobbling, grazing,
      gymnosophy, herbivorism, herbivority, herbivorousness,
      high-protein diet, high-vitamin diet, hunger, ingestion, licking,
      low-carbohydrate diet, low-salt diet, macrobiotic diet,
      manducation, mastication, messing, munching, nephalism, nibbling,
      nutrition, omnivorism, omnivorousness, omophagy, pantophagy, pap,
      pasture, pasturing, pecking, plain living, refraining, refrainment,
      regalement, regime, regimen, relishing, rumination, salt-free diet,
      savoring, sexual abstinence, simple diet, soft diet, spare diet,
      spoon victuals, tasting, teetotalism, the pledge, total abstinence,
      ulcer diet, vitamin-deficiency diet, wolfing