nonavian

noun 0.580

vivarium

noun 0.578

avocet

noun 0.564

opusculum

noun 0.563

navicula

noun 0.561

ambulacrum

noun 0.556

aviculture

noun 0.555

aviary

noun 0.550

avian

noun 0.547

furcula

noun 0.541

auricula

noun 0.524

navicular

noun 0.516

hamulus

noun 0.513

pygidium

noun 0.511

alveolus

noun 0.510

animalcule

noun 0.508

ornithopter

noun 0.504

acetabulum

noun 0.502