Tummy is an informal shorthand for stomach. This word is mainly used for talking to little kids: "Aw, do you have a tummy ache?"

You wouldn't use the word tummy in your human anatomy class, but you might use it when you babysit your two-year-old niece. Infants sometimes have "tummy time," a short period when they are turned onto their stomachs so they can develop their neck and shoulder muscles. Tummy has been in use since the 19th century, and experts guess that it comes from a childish pronunciation of stomach.

Definitions of tummy

n slang for a paunch

bay window, corporation, pot, potbelly
Type of:
belly, paunch
a protruding abdomen

n an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion

breadbasket, stomach, tum
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craw, crop
a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food
first stomach, rumen
the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing
reticulum, second stomach
the second compartment of the stomach of a ruminant
omasum, psalterium, third stomach
the third compartment of the stomach of a ruminant
abomasum, fourth stomach
the fourth compartment of the stomach of a ruminant; the one where digestion takes place
Type of:
internal organ, viscus
a main organ that is situated inside the body

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