What does "acuminate" mean?

Acuminate: Tapering to a point; pointed; as, acuminate leaves, teeth, etc.

Additional senses

  1. 2.To render sharp or keen. [R.] "To acuminate even despair." Cowper.
  2. 3.To end in, or come to, a sharp point. "Acuminating in a cone of prelacy." Milton.

Sources