Noun tum has 1 sense
  1. stomach, tummy, tum, breadbasket - an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion
    --1 is a kind of internal organ, viscus
    --1 is a part of
     alimentary canal, alimentary tract, digestive tube, digestive tract, gastrointestinal tract, GI tract
    --1 has parts:
     gastric artery, arteria gastrica; gastric vein, vena gastrica; gastroomental vein, gastroepiploic vein, vena gastroomentalis; pit of the stomach, epigastric fossa
    --1 has particulars:
     craw, crop; rumen, first stomach; reticulum, second stomach; psalterium, omasum, third stomach; abomasum, fourth stomach
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