The Collaborative International Dictionary
Cribration
Cribration \Cri*bra"tion\ (kr?-br?"sh?n), n. [Cf. F. cribration, fr. L. cribrare to sift. See Cribble, n.] (Pharmacy) The act or process of separating the finer parts of drugs from the coarser by sifting.
Wiktionary
cribration
n. The separation of the finer parts of drugs from the coarser parts by sifting.