avicularium

noun 0.556

involucrum

noun 0.546

perambulation

noun 0.542

umbilical

noun 0.532

planula

noun 0.531

ambulation

noun 0.529

vasculum

noun 0.527

alarum

noun 0.525

perambulator

noun 0.522

ambulatory

noun 0.516

lumbrical

noun 0.513

umbel

noun 0.513

epibranchial

noun 0.512

labyrinth

noun 0.511

lacuna

noun 0.509

abalone

noun 0.509

umbilicus

noun 0.508

ambler

noun 0.508

plexus

noun 0.506

ambulant

noun 0.502

echinoderm

noun 0.501