Cribriform /(kr?b"r?f?rm)/

Crib·ri·form

Cribriform

a.
  1. Resembling, or having the form of, a sieve; pierced with holes; as, the cribriform plate of the ethmoid bone; a cribriform compress.

Phrases & Compounds
Cribriform cells
those which have here and there oblique or transverse sieve plates, or places perforated with many holes.