Foaming is the present participle of foam.
Plant foaming and polymer foaming
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
From first hand experience, foaming hand soap will work in a non-foaming dispenser. Although the soap will come out as regular soap, not foam. The foaming soap will work as regular soap, just not foaming soap.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "lecturer" is a noun.