Source : Webster's Revised Unabridged Dictionary (1913)

Penicillate \Pen`i*cil"late\, a. [Cf. F. p['e]nicill['e]. See
   {Penicil}.] (Biol.)
   Having the form of a pencil; furnished with a pencil of fine
   hairs; ending in a tuft of hairs like a camel's-hair brush,
   as the stigmas of some grasses.