pear vs bartlett pear

pear and bartlett pear both are nouns.

Word	Noun	Adjective	Verb	Adverb
pear	Yes	No	No	No
bartlett pear	Yes	No	No	No

As nouns, bartlett pear is a hyponym of pear; that is, bartlett pear is a word with a more specific, narrower meaning than pear:

Other hyponyms of pear include bosc, anjou, bartlett, seckel, seckel pear, Clapp's Favourite.

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