extravasation vs eructation

extravasation and eructation both are nouns.

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

As nouns, extravasation and eructation are synonyms defined as:

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

Other synonyms of extravasation include eruption.

extravasation (noun)	eructation (noun)
the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine	a reflex that expels gas noisily from the stomach through the mouth
(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