Water chevrotain \Wa"ter chev`ro*tain"\ (Zo["o]l.) A large West African chevrotain ({Hy[ae]moschus aquaticus}). It has a larger body and shorter legs than the other allied species. Called also {water deerlet}. Boomorah \Boo"mo*rah\, n. [Native name.] (Zo["o]l.) A small West African chevrotain ({Hy[ae]moschus aquaticus}), resembling the musk deer.