TonsillitisTonsillitis. . Learn about tonsillitis causes and types such as acute tonsillitis, strep throat, mononucleosis (mono), chronic tonsillitis, peritonsillar abscess, and hypertrophic . Use tonsillitis in a Sentence See images of tonsillitis Search tonsillitis on the Web Origin: 1795 . . –noun Pathology . inflammation of a tonsil or the tonsils . Inflammation of the tonsils. . Pictures of acute tonsillitis (Strep throat), Acute Tonsillitis - Website of Bechara Y. . You don't need t... more