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 (ə-kyo͞o′mə-nĭt, -nāt′)
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 Archaic
To sharpen or taper.

[Latin acūminātus, past participle of acūmināre, to sharpen, from acūmen, acuteness; see acumen.]

a·cu′mi·na′tion n.
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A sharp or tapered end:
References in periodicals archive ?
Hind femur relatively stout, width to length about 3:7; clypeal margin medially rounded or with wide reflexed area or with broad, rounded acumination .
The 2014 Black History Month Parade featured more than 100 groups that participated including major groups such as the NAACP, SCLC, Girl Scouts, YWCA, Dancing Dolls, Red Hatters, motorcycle clubs, car clubs, celebrities and pro athletes along with phenomenal marching bands, amazing Caribbean stilt-walkers, special guest and intriguing mascots where all a part of the acumination of excitement.
According to this initiative, the Ministry of Social Affairs extends a humanitarian acumination invitation to the community members and the private and public sectors to participate in applying for the Award.