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The Collaborative International Dictionary
Clamorousness

Clamorous \Clam"or*ous\, a. [LL. clamorosus, for L. Clamosus: cf. OF. clamoreux.] Speaking and repeating loud words; full of clamor; calling or demanding loudly or urgently; vociferous; noisy; bawling; loud; turbulent. ``My young ones were clamorous for a morning's excursion.''
--Southey. -- Clam"or*ous*ly, adv. -- Clam"or*ous*ness, n.

Wiktionary
clamorousness

n. The state or quality of being clamorous.