Aspergillum

from The Collaborative International Dictionary of English v.0.48
Aspergill \As"per*gill\, Aspergillum \As`per*gil"lum\, n. [LL.
   aspergillum, fr. L. aspergere. See {Asperse}, v. t.]
   1. The brush used in the Roman Catholic church for sprinkling
      holy water on the people. [Also written aspergillus.]
      [1913 Webster]

   2. (Zool.) See {Wateringpot shell}.
      [1913 Webster]
    

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