Source : Webster's Revised Unabridged Dictionary (1913)

Acuate \Ac"u*ate\, v. t. [L. acus needle.]
   To sharpen; to make pungent; to quicken. [Obs.] ``[To] acuate
   the blood.'' --Harvey.

Acuate \Ac"u*ate\, a.
   Sharpened; sharp-pointed.

Source : WordNet®

acuate
     adj : ending in a sharp point [syn: {acute}, {sharp}, {needlelike}]