n. pl. cri•bra (krī′brə, krĭb′rə)
A horizontal lamina that fits into the ethmoidal notch of the frontal bone and supports the olfactory lobes of the cerebrum.cribriform plate of ethmoid bone
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Historical Examples of cribrum
His κόσκινον or sieve (cribrum Eratosthenis) was a device for discovering all prime numbers.