citrin vs vitamin P

citrin and vitamin P both are nouns.

Word	Noun	Adjective	Verb	Adverb
citrin	Yes	No	No	No
vitamin P	Yes	No	No	No

As nouns, citrin and vitamin P are synonyms defined as:

citrin and vitamin P: a vitamin that maintains the resistance of cell and capillary walls to permeation

Other synonyms of citrin include bioflavinoid.

citrin (noun)	vitamin P (noun)
a vitamin that maintains the resistance of cell and capillary walls to permeation	a vitamin that maintains the resistance of cell and capillary walls to permeation