From Longman Dictionary of Contemporary Englishtonsillitiston‧sil‧li‧tis /ˌtɒnsɪˈlaɪtɪs $ ˌtɑːn-/ noun [uncountable] MIan infection of the tonsils Sam’s got tonsillitis.
Examples from the Corpus
tonsillitis• Pitcher Jeff Juden is still bedridden with acute tonsillitis.• Schizophrenia is classified as a functional psychosis and split personality as a dissociative hysterical neurosis, as different as tonsillitis and appendicitis.• Cascarino did not train yesterday but Manchester City left back Terry Phelan proved his full recovery from tonsillitis.• But one summer when I was around ten or eleven I developed a nasty sore throat which the doctor thought was tonsillitis.• Craig was able to say his thanks in church while I was languishing in bed with tonsillitis. 