acumination

a·cu·mi·nate

 (ə-kyo͞o′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 Archaic

To sharpen or taper.

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

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a·cu′mi·na′tion n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

acumination

noun

A sharp or tapered end:

acicula, apex, cusp, mucro, mucronation, point, tip.

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.