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The Collaborative International Dictionary of English v.0.48 (gcide)

Acuminate \A*cu"mi*nate\, a. [L. acuminatus, p. p. of acuminare
to sharpen, fr. acumen. See {Acumen}.]
Tapering to a point; pointed; as, acuminate leaves, teeth,
etc.
[1913 Webster]


Acuminate \A*cu"mi*nate\, v. t.
To render sharp or keen. [R.] "To acuminate even despair."
--Cowper.
[1913 Webster]


Acuminate \A*cu"mi*nate\, v. i.
To end in, or come to, a sharp point. "Acuminating in a cone
of prelacy." --Milton.
[1913 Webster]