Definitions

from The Century Dictionary.

  • noun A genus of water-beetles of the family Dytiscidæ, containing species of moderate size, with ciliated hind tarsi and round tarsal disks in the male.

Etymologies

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Examples

  • January 25th, 2009 06: 43 wow that is so freaking amazing acilius

    Lightly Toasted 2010

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