Cribellum

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cribellum \Cri*bel"lum\ (kr?b?l"l?m), n. [L., a small sieve,
     dim. of cribrum sieve.] (Zool.)
     A peculiar perforated organ of certain spiders
     ({Ciniflonid[ae]}), used for spinning a special kind of silk.
     [1913 Webster]