exudation vs emission

exudation and emission both are nouns.

Word	Noun	Adjective	Verb	Adverb
exudation	Yes	No	No	No
emission	Yes	No	No	No

As nouns, emission is a hypernym of exudation; that is, emission is a word with a broader meaning than exudation:

Other hypernyms of exudation include discharge.

exudation (noun)	emission (noun)
the process of exuding; the slow escape of liquids from blood vessels through pores or breaks in the cell membranes	the act of emitting; causing to flow forth
a substance that oozes out from plant pores	the occurrence of a flow of water (as from a pipe)
	the release of electrons from parent atoms
	any of several bodily processes by which substances go out of the body
	a substance that is emitted or released