eructation vs extravasation

eructation and extravasation both are nouns.

Word	Noun	Adjective	Verb	Adverb
eructation	Yes	No	No	No
extravasation	Yes	No	No	No

As nouns, eructation and extravasation are synonyms defined as:

eructation and extravasation: (of volcanoes) pouring out fumes or lava (or a deposit so formed)

Other synonyms of eructation include eruption.

eructation (noun)	extravasation (noun)
a reflex that expels gas noisily from the stomach through the mouth	the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine
(of volcanoes) pouring out fumes or lava (or a deposit so formed)	(of volcanoes) pouring out fumes or lava (or a deposit so formed)
	an extravasated liquid (blood or lymph or urine); the product of extravasation