third stomach

English Thesaurus

1. the third compartment of the stomach of a ruminant (noun.animal)

hypernym	:	breadbasket, stomach, tum, tummy,
definition	:	an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion (noun.body)

part meronym	:	ruminant,
definition	:	any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartments (noun.animal)