hydathode vs stomate

hydathode and stomate both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydathode	Yes	No	No	No
stomate	Yes	No	No	No

As nouns, stomate is a hypernym of hydathode; that is, stomate is a word with a broader meaning than hydathode:

hydathode: a pore that exudes water on the surface or margin of a leaf of higher plants
stomate: a minute epidermal pore in a leaf or stem through which gases and water vapor can pass

Other hypernyms of hydathode include pore, stoma.

hydathode (noun)	stomate (noun)
a pore that exudes water on the surface or margin of a leaf of higher plants	a minute epidermal pore in a leaf or stem through which gases and water vapor can pass