abomasum vs tum

abomasum and tum both are nouns.

Word	Noun	Adjective	Verb	Adverb
abomasum	Yes	No	No	No
tum	Yes	No	No	No

As nouns, tum is a hypernym of abomasum; that is, tum is a word with a broader meaning than abomasum:

abomasum: the fourth compartment of the stomach of a ruminant; the one where digestion takes place
tum: an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion

Other hypernyms of abomasum include breadbasket, stomach, tummy.

abomasum (noun)	tum (noun)
the fourth compartment of the stomach of a ruminant; the one where digestion takes place	an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion