: the act or an instance of declaiming: a rhetorical speech, oration, or harangue
During her declamation Eustacia held her head erect, and spoke as roughly as she could, feeling pretty secure from observation. Thomas Hardy
Flaubert invited a small party of friends … to a private reading—or, rather, a declamation, for he liked to bray his work at the top of his lungs—that lasted for ten hours. Judith Thurman
Iacocca talks nonstop, like the salesman he is. If not for the humor and the regular flashes of common sense, his declamations would be rants. Kurt Andersen
2
a
: the art or practice of rhetorical speaking or recitation as an exercise in elocution
Higher education was exclusively devoted to debate and declamation and was in the hands of a rhetor, a specialist teacher of public speaking. Anthony Everitt
b
: a recitation of a speech or poem in a way that demonstrates one's elocution
His moving declamation of the Rupert Brooke poem 'The Soldier' at Armistice Day celebrations on Friday … confirmed his ability to inhabit the two roles of Royal figurehead and private man. Tom Sykes