What is "vociferant"

Usage examples of "vociferant".

He was not expelled from the United States, he talked himself countryless, his expulsion due not to the treason but to his having been so vocal and vociferant in the conduct of it, burning each bridge vocally behind him before he had even reached the place to build the next one: so that it was no provost marshal nor even a civic agency but his late coplotters themselves who put afoot the movement to evict him from Kentucky and the United States and, if they had caught him, probably from the world too.