apices

apices

[ey-puh-seez, ap-uh-]
noun
a plural of apex.
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apex

[ey-peks]
noun, plural apexes, apices [ey-puh-seez, ap-uh-] .
1.
the tip, point, or vertex; summit.
2.
climax; peak; acme: His election to the presidency was the apex of his career.
3.
Astronomy, solar apex.

Origin:
1595–1605; < Latin

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
apex (ˈeɪpɛks)
 
n , pl apexes, apices
1.  the highest point; vertex
2.  the pointed end or tip of something
3.  a pinnacle or high point, as of a career, etc
4.  astronomy Also called: solar apex the point on the celestial sphere, lying in the constellation Hercules, towards which the sun appears to move at a velocity of 20 kilometres per second relative to the nearest stars
 
[C17: from Latin: point]

APEX (ˈeɪpɛks)
 
n acronym for
1.  Advance Purchase Excursion: a reduced airline or long-distance rail fare that must be paid a specified number of days in advance
2.  (in Britain) Association of Professional, Executive, Clerical, and Computer Staff

apices (ˈæpɪˌsiːz, ˈeɪ-)
 
n
a plural of apex

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

apex
c.1600, from L. apex "summit, peak, tip;" probably related to apere "to fasten, fix," hence "the tip of anything" (one of the meanings in L. was "small rod at the top of the flamen's cap"). Proper plural is apices.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

apex a·pex (ā'pěks)
n. pl. a·pex·es or a·pi·ces (ā'pĭ-sēz', āp'ĭ-)
The pointed end of a conical or pyramidal structure.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
apex   (ā'pěks)  Pronunciation Key 
The highest point, especially the vertex of a triangle, cone, or pyramid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
APEX
Arctic Polynya Experiment
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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