I. noun — [ mass noun] 1. loud and enthusiastic approval • the tackle brought the supporters to their feet in acclamation.
II. phrases by acclamation a. (of election, agreement, etc.) by overwhelming vocal approval and without ballot. • the First Chamber approved ratification of the Treaty by acclamation.
(Canadian) (of election) by virtue of being the sole candidate.
– origin mid 16th cent.: from Latin acclamatio(n-), from acclamare ‘shout at’, later ‘shout in approval’ (see acclaim).