Word Study
scopula
CIDE DICTIONARY
scopula, n. [L. scopulae, pl. a little broom.].
A peculiar brushlike organ found on the foot of spiders and used in the construction of the web. [1913 Webster]
OXFORD DICTIONARY
scopula, n. (pl. scopulae) any of various small brushlike structures, esp. on the legs of spiders.
Etymology
LL, dimin. of L scopa: see SCOPA
For further exploring for "scopula" in Webster Dictionary Online