central
mesial
amidships
average
banal
center
centermost
common
core
equatorial
equidistant
fair
fairish
halfway
indifferent
intercurrent
interior
interjacent
intermediary
intermediate
intervenient
intervening
mean
median
mediocre
mediterranean
medium
mesne
mezzo
mid
middle
middle-of-the-road
middlemost
middling
midland
midmost
midships
midway
moderate
normal
nuclear
ordinary
routine
standard
usual
media
anterior
aortic
apical
cerebellar
cortical
distal
dorsal
dorsolateral
frontal
hippocampal
hypothalamic
lateral
mediodorsal
medullary
patellar
pharyngeal
prefrontal
subcortical
tegmental
thalamic
tibial
remedial