piriform area vs pyriform area

piriform area and pyriform area both are nouns.

Word	Noun	Adjective	Verb	Adverb
piriform area	Yes	No	No	No
pyriform area	Yes	No	No	No

As nouns, piriform area and pyriform area are synonyms defined as:

piriform area and pyriform area: pear-shaped neural structure on either side of the brain in the rhinencephalon

Other synonyms of piriform area include piriform lobe, pyriform lobe.

piriform area (noun)	pyriform area (noun)
pear-shaped neural structure on either side of the brain in the rhinencephalon	pear-shaped neural structure on either side of the brain in the rhinencephalon