operculum

noun 0.741

preopercular

noun 0.703

preoperculum

noun 0.671

preopercle

noun 0.658

oper

noun 0.646

operative

noun 0.610

opus operatum

noun 0.596

operant

noun 0.575

opusculum

noun 0.574

opera

noun 0.562

operand

noun 0.547

oscine

noun 0.543

osculum

noun 0.542

operation

noun 0.538

operad

noun 0.535

occlusive

noun 0.534

opus

noun 0.534

ops

noun 0.521

orbitotomy

noun 0.521

occlusal

noun 0.521

operon

noun 0.517

obturator

noun 0.514

operetta

noun 0.511

opisthobranch

noun 0.511

ovate

noun 0.510

obstruent

noun 0.507

ocular

noun 0.505

proboscis

noun 0.504

orbicularis

noun 0.503

imperforate

noun 0.503

octopod

noun 0.502

ovular

noun 0.502

odontophore

noun 0.502