lamina cri·bro·sa -kri-'brō-sə n, pl laminae cri·bro·sae -.sē, -.sī any of several anatomical structures having the form of a perforated plate: as
a) CRIBRIFORM PLATE (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
Medical dictionary. 2011.