Answer: retial

AnswerCrossword Clue
RETIALPertaining to a nerve network.
RETIALPlexiform.
RETIALOf a nerve network.
retialnetwork, as of fibers, nerves, or blood vessels
retialpertaining to a rete (an anatomical mesh or network)
retialpierced plate on an astrolabe, having projections whose points correspond to the fixed stars