Gram. a noun or nominal derived from a verb and functioning in some respects like a verb: in English, it is either a noun ending in -ing (a gerund) or an infinitive (Ex.: walking is healthful, to err is human)
See verbal noun in American Heritage Dictionary 4
A noun that is derived from a verb and usually preserves the verb's syntactic features, such as transitivity or the capability of taking nominal or verbal complements.