Definition of Protuberant

Adjective: protuberant prow't(y)oo-bu-runt [N. Amer], pru't(y)oo-bu-runt [Brit]

Curving outward
"The nostrils and eyes are protuberant, enabling the animal to see and breathe without exposing the rest of its body";
- bellied, bellying, bulbous, bulging, bulgy