|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|the offspring of a zebra and a donkey.|
|Cousteau (k-stō') Pronunciation Key
French underwater explorer who helped develop the Aqua-Lung (an underwater breathing apparatus) and designed the bathyscaphe and a small, deep-sea submarine known as a diving saucer. Cousteau also devised an underwater television system and produced several films that widely popularized marine biology.