Definify.com
Webster 1913 Edition
Whooping
Whoop′ing
,Whooping cough 
(Med.)
, a violent, convulsive cough, returning at longer or shorter intervals, and consisting of several expirations, followed by a sonorous inspiration, or whoop; chin cough; hooping cough. 
Dunglison. 
– Whooping crane 
(Zool.)
, a North American crane (
– Crus Americana
) noted for the loud, whooplike note which it utters. Whooping swan 
(Zool.)
, the whooper swan. See the Note under 
 Swan
.