lamina cribrosa

noun

lamina cri·​bro·​sa -kri-ˈbrō-sə 

plural laminae cribrosae -ˌsē, -ˌsī 

: any of several anatomical structures having the form of a perforated plate: as

a

: cribriform plate sense 1

b

: the part of the sclera of the eye penetrated by the fibers of the optic nerve

c

: a perforated plate that closes the internal auditory canal