sneezing vs sternutation

sneezing and sternutation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sneezing	Yes	No	No	No
sternutation	Yes	No	No	No

As nouns, sneezing and sternutation are synonyms defined as:

sneezing and sternutation: a symptom consisting of the involuntary expulsion of air from the nose

Other synonyms of sneezing include sneeze.

sneezing (noun)	sternutation (noun)
a symptom consisting of the involuntary expulsion of air from the nose	a symptom consisting of the involuntary expulsion of air from the nose