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apex

[ ey-peks ]
/ ˈeɪ pɛks /
|

noun, plural a·pex·es, a·pi·ces [ey-puh-seez, ap-uh-] /ˈeɪ pəˌsiz, ˈæp ə-/.

the tip, point, or vertex; summit.
climax; peak; acme: His election to the presidency was the apex of his career.
Astronomy. solar apex.

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RELATED WORDS

culmination, pinnacle, apogee, cusp, acme, zenith, point, climax, tip, crown, maximum, roof, height, vertex, summit, peak, spire, crest, meridian, tops

Nearby words

aperture-priority, apery, aperçu, apeshit, apetalous, apex, apex beat, apex club, apex pneumonia, apgar, apgar score

Origin of apex

Borrowed into English from Latin around 1595–1605
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for apexes

British Dictionary definitions for apexes (1 of 2)

APEX

/ (ˈeɪpɛks) /

n acronym for

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

British Dictionary definitions for apexes (2 of 2)

apex

/ (ˈeɪpɛks) /

noun plural apexes or apices (ˈæpɪˌsiːz, ˈeɪ-)

the highest point; vertex
the pointed end or tip of something
a pinnacle or high point, as of a career, etc
Also called: solar apex astronomy 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

Word Origin for apex

C17: from Latin: point
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for apexes

apex


n.

c.1600, from Latin apex "summit, peak, tip, top, extreme end;" probably related to apere "to fasten, fix," hence "the tip of anything" (one of the meanings in Latin was "small rod at the top of the flamen's cap"), from PIE *ap- "to take, reach." Proper plural is apices.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for apexes

apex

[ āpĕks ]

n. pl. a•pex•es

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.

Science definitions for apexes

apex

[ āpĕks ]

The highest point, especially the vertex of a triangle, cone, or pyramid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.