[1] : The Collaborative International Dictionary of English v.0.48

haranguer \harang"uer\ h.ara^ng"~er, n.
   one who harangues, or is fond of haranguing; a declaimer.
   1913 webster

         with them join'd all th' haranguers of the throng,
         that thought to get preferment by the tongue. --dryden.
   1913 webster

[2] : WordNet (r) 2.0

haranguer
     n : a public speaker who delivers a loud or forceful or angry
         speech

Haranguer >> H Words
Haranguer, definition of term: Haranguer
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