clamouring vs clamor

clamouring and clamor both are nouns.

Word	Noun	Adjective	Verb	Adverb
clamouring	Yes	No	No	No
clamor	Yes	No	Yes	No

As nouns, clamouring and clamor are synonyms defined as:

Other synonyms of clamouring include clamoring, clamour, hue and cry.

clamouring (noun)	clamor (noun)
loud and persistent outcry from many people	loud and persistent outcry from many people
	a loud harsh or strident noise

clamouring (verb)	clamor (verb)
	utter or proclaim insistently and noisily
	make loud demands
	compel someone to do something by insistent clamoring