chin cough or chincoughn (Pathology) another name for whooping cough[C16: changed (through influence from chine1 and chin) from earlier chink-cough, from chink2 + cough]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014