Captain Ahab
/ˌkæptɪn ˈeɪhæb/
/ˌkæptɪn ˈeɪhæb/
- the main character in the novel Moby-Dick by Herman Melville. Captain Ahab, who hunts a white whale (= very large sea creature), is an example of a person who becomes crazy and puts others in danger by having only one aim in life.