noun, noun or participle which takes 'suru'
shout loudly; vociferate; fulminate
A yojijukugo meaning to raise one's voice strongly and appeal or protest. Often used in formal or written contexts for vehement outcry.
彼は不正に対して大声疾呼した。
He vociferated against the injustice.
An article fulminating on the issue appeared in the newspaper.