Pyrus communis vs pear

Pyrus communis and pear both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pyrus communis	Yes	No	No	No
pear	Yes	No	No	No

As nouns, Pyrus communis and pear are synonyms defined as:

Pyrus communis and pear: Old World tree having sweet gritty-textured juicy fruit; widely cultivated in many varieties

Other synonyms of Pyrus communis include pear tree.

Pyrus communis (noun)	pear (noun)
Old World tree having sweet gritty-textured juicy fruit; widely cultivated in many varieties	sweet juicy gritty-textured fruit available in many varieties
	Old World tree having sweet gritty-textured juicy fruit; widely cultivated in many varieties