blowup vs effusion

blowup and effusion both are nouns.

Word	Noun	Adjective	Verb	Adverb
blowup	Yes	No	No	No
effusion	Yes	No	No	No

As nouns, blowup and effusion are synonyms defined as:

Other synonyms of blowup include ebullition, gush, outburst.

blowup (noun)	effusion (noun)
a photographic print that has been enlarged	flow under pressure
an unrestrained expression of emotion	an unrestrained expression of emotion
a violent release of energy caused by a chemical or nuclear reaction