The Collaborative International Dictionary
Sea orange
Sea orange \Sea" or"ange\ (Zo["o]l.) A large American holothurian ( Lophothuria Fabricii) having a bright orange convex body covered with finely granulated scales. Its expanded tentacles are bright red.
Wiktionary
sea orange
n. A large American holothurian ((taxlink Lophothuria fabricii species noshow=1)) with a bright orange convex body covered with finely granulated scales.