water pore vs water stoma

water pore and water stoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
water pore	Yes	No	No	No
water stoma	Yes	No	No	No

As nouns, water pore and water stoma are synonyms defined as:

water pore and water stoma: a pore that exudes water on the surface or margin of a leaf of higher plants

Other synonyms of water pore include hydathode.

water pore (noun)	water stoma (noun)
a pore that exudes water on the surface or margin of a leaf of higher plants	a pore that exudes water on the surface or margin of a leaf of higher plants