humpback

noun

1. an abnormal backward curve to the vertebral column

Similar word(s): hunchback, kyphosis

Definition categories: state

2. a person whose back is hunched because of abnormal curvature of the upper spine

Similar word(s): crookback, hunchback

Definition categories: person, cripple

3. large whalebone whale with long flippers noted for arching or humping its back as it dives

Definition categories: animal