stratum
strata
foot
feet
fibula
fibulae
glomerulus
glomeruli
abscess
abscesses
joint
joints
bulla
bullae
testis
testes
septum
septa
oesophagus
oesophagi
diagnosis
diagnoses
humerus
humeri
syringe
syringes
acetabulum
acetabula
larva
larvae
chorda
chordae
varix
varices
fungus
fungi
ganglion
ganglia
villus
villi
atrium
atria
pons
pontes
ovum
ova
bout
bouts