n. [L. cribrum, sieve]
1. (ARTHROPODA: Chelicerata)
In spiders, a sieve-like, transverse plate, usually divided by a delicate keel into two equal parts, located in front of the spinnerets; the modified anterior median spinnerets.
2. (ARTHROPODA: Insecta)
A sieve-like chitinous plate near the upper surface of the mandibles.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • cribellum — ● cribellum, cribella ou cribellums nom masculin (latin cribellum, petit crible) Plaque criblée des araignées cribellates, située en avant des filières, et par où sort une soie gommeuse, étirée par les calamistra en fils destinés à retenir les… …   Encyclopédie Universelle

  • Cribellum — Cri*bel lum (kr?b?l l?m), n. [L., a small sieve, dim. of cribrum sieve.] (Zo[ o]l.) A peculiar perforated organ of certain spiders ({Ciniflonid[ae]}), used for spinning a special kind of silk. [1913 Webster] …   The Collaborative International Dictionary of English

  • Cribellum — For other uses, see Cribellum (disambiguation). The cribellum is a silk spinning organ found in certain spiders. Unlike normal spinnerets, the cribellum consists of one or more plates covered in thousands of tiny spigots.[1] These spigots produce …   Wikipedia

  • Cribellum — Cribellate Spinnen (Cribellatae) sind Echte Webspinnen, die dank besonderer Organe in der Lage sind, Fangwolle ohne Leimtröpfchen für ihre Spinnennetze herzustellen. Sie unterscheiden sich grundlegend von den ecribellaten Spinnen, die Leimfäden… …   Deutsch Wikipedia

  • cribellum — noun /kɹɪˈbɛləm/ A spinning organ having many fine pores, situated in front of the spinners in some spiders …   Wiktionary

  • cribellum — [krɪ bɛləm] noun (plural cribella lə) Zoology (in some spiders) an additional spinning organ with numerous fine pores, situated in front of the spinnerets. Derivatives cribellate adjective Origin C19: from late L., dimin. of cribrum sieve …   English new terms dictionary

  • cribellum — cri·bel·lum …   English syllables

  • cribellum — …   Useful english dictionary

  • Cribrarula cribellum — Scientific classification Kingdom: Animalia Phylum: Mollusca Class: G …   Wikipedia

  • posterior cribellum — (ARTHROPODA: Chelicerata) In Arachnida, the posterolateral spinnerets in Stenochilidae …   Dictionary of invertebrate zoology

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