wetting agent vs wetter

wetting agent and wetter both are nouns.

Word	Noun	Adjective	Verb	Adverb
wetting agent	Yes	No	No	No
wetter	Yes	No	No	No

As nouns, wetting agent and wetter are synonyms defined as:

wetting agent and wetter: a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved

Other synonyms of wetting agent include surface-active agent, surfactant.

wetting agent (noun)	wetter (noun)
a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved	a workman who wets the work in a manufacturing process
	someone suffering from enuresis; someone who urinates while asleep in bed
	a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved