krə̇ˈbeləm noun
( plural cribel·la -lə)
Etymology: New Latin, from Late Latin, small sieve, diminutive of Latin cribrum sieve; akin to Latin cernere to sift, discern — more at certain
1. : a special spinning organ having numerous fine perforations and situated in front of the ordinary spinning organs that is found only in spiders of certain families
2. : a chitinous plate with perforations which constitute the openings of minute ducts leading from certain glands of insects