cribellum

Etymology
Borrowed from, diminutive of.

Noun

 * 1)  A spinning organ having many fine pores, situated in front of the spinners in some araneomorph spiders.
 * 2) * 1996: some groups of spiders have a sieve-like plate, the cribellum, just in front of the spinners. — Michael J. Roberts, Spiders of Britain and Northern Europe (Collins 1996, p. 17)

Translations

 * Catalan: cribel
 * French:
 * Spanish: cribelo

Etymology
From.

Noun

 * 1)  a small sieve