mesentery vs mesocolon

mesentery and mesocolon both are nouns.

Word	Noun	Adjective	Verb	Adverb
mesentery	Yes	No	No	No
mesocolon	Yes	No	No	No

As nouns, mesocolon is a hyponym of mesentery; that is, mesocolon is a word with a more specific, narrower meaning than mesentery:

mesentery: a double layer of peritoneum that attaches to the back wall of the abdominal cavity and supports the small intestines
mesocolon: mesentery that holds the lower colon to the dorsal abdominal wall

mesentery (noun)	mesocolon (noun)
a double layer of peritoneum that attaches to the back wall of the abdominal cavity and supports the small intestines	mesentery that holds the lower colon to the dorsal abdominal wall