The Collaborative International Dictionary of English v.0.48:

Cribriform \Crib"ri*form\ (kr?b"r?f?rm), a. [L. cribrum sieve +
   -form: cf. F. cribriforme.]
   Resembling, or having the form of, a sieve; pierced with
   holes; as, the cribriform plate of the ethmoid bone; a
   cribriform compress.
   [1913 Webster]

   Cribriform cells (Bot.), those which have here and there
      oblique or transverse sieve plates, or places perforated
      with many holes.
      [1913 Webster]