• Whooping cough.
Chin' cough' [ For chink cough ; confer As. cincung long laughter, Scot. kink a violent fit of coughing, akin to Middle High German kīchen to pant. Confer Kinknaust , Cough .] Whooping cough. 
whooping cough or tussis convulsiva, mainly a disease of childhood associated with a strange sounding cough which often brings on vomiting. Synonyms: ching cough, pertussis, tussis convulsiva. (Tussis means cough; a cough medicine is an antitussive.)