axis
center
center of action
center of gravity
centroid
centrum
core
dead center
epicenter
heart
hub
kernel
marrow
medulla
metacenter
middle
nave
navel
nub
nucleus
omphalos
omphalus
pith
pivot
storm center
umbilic
umbilici
point
Regina
anno
backstrap
caput
cardinem
confusa
constitutionem
culi
epiglottis
gentibus
gloriosa
grass-land
it-the
juventus
metiri
off-color
outbound
peccata
periosteum
postnatal
saeculi
striatum
surface-to-surface
tristi
tyranno