CRIBELLUM

cribellum: translation

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.