Calamistrum

1 definition found

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

  Calamistrum \Cal`a*mis"trum\, n. [L., a curling iron.] (Zool.)
     A comblike structure on the metatarsus of the hind legs of
     certain spiders ({Ciniflonid[ae]}), used to curl certain
     fibers in the construction of their webs.
     [1913 Webster]