a·cu·mi·nate (ə-kyōō'mə-nĭt, -nāt') adj. Tapering gradually to a sharp point, as the tips of certain leaves. tr.v.
(-nāt') a·cu·mi·nat·ed, a·cu·mi·nat·ing, a·cu·mi·nates To sharpen or taper.
[Latin acūminātus, past participle of acūmināre, to sharpen, from acūmen, acuteness; see acumen.] a·cu'mi·na'tion n.