humpback

Noun

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

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

• an abnormal backward curve to the vertebral column

Related words

• Synonyms: 
  humpback whale , Megaptera novaeangliae , hunchback , crookback , kyphosis