roar·ing -iŋ n noisy inhalation in a horse esp. upon exercising that is caused by paralysis and muscular atrophy of part of the larynx compare GRUNTING, THICK WIND
* * *
roar·ing (rorґing) a rough sound on inhalation and sometimes on exhalation by a horse, usually due to obstruction in the respiratory tract or laryngeal hemiplegia.Medical dictionary. 2011.