butt-headed
adjective
ˈbət-¦he-dəd 
dialectal, of an animal
: without horns : muley
Word History
Etymology
butt entry 6
- Pterocarya
- pterocaryae
- pterocaryas
- Pterocaulon
- Pterocera
- pteroceras
- Pterocladia
- pterocleses
- pteroclesses
- Pterocletes
- Pteroclididae
- pteroclididaes
- pterocnemiae
- pterocnemias
- pterodactyl
- Pterodactyli
- pterodactyli
- pterodactylidaes
- pterodactyls
- Pterodactylus
- pterodactyluses
- pterodactylusses
- Pterodroma
- pteroes
- pterographer