fourth stomach

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the fourth compartment of the stomach of a ruminant;
the one where digestion takes place
• Syn:
abomasum
• Derivationally related forms:
abomasal (for: abomasum)
• Hypernyms:
stomach, tummy, tum, breadbasket
• Part Holonyms:
ruminant