westerly

[wes-ter-lee]
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adjective

moving, directed, or situated toward the west: the westerly end of the field.
(especially of a wind) coming from the west: a westerly gale.

adverb

toward the west: to escape westerly.
from the west: a sharp wind blowing westerly.

noun, plural west·er·lies.

a wind that blows from the west: an occasional westerly that pommeled the island.
westerlies, (used with a plural verb) any semipermanent belt of westerly winds, especially those that prevail at latitudes lying between the tropical and polar regions of the earth.

Origin of westerly

1570–80; west + -erly, as in easterly
Related formswest·er·li·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of westerlies


British Dictionary definitions for westerlies

Westerlies

pl n

meteorol the prevailing winds blowing from the west on the poleward sides of the horse latitudes, often bringing depressions and anticyclones

westerly

adjective

of, relating to, or situated in the west

adverb, adjective

towards or in the direction of the west
(esp of the wind) from the west

noun plural -lies

a wind blowing from the west
Derived Formswesterliness, noun
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 westerlies
n.

prevailing winds in certain latitudes, 1876, from westerly (see west).

westerly

adv.

late 15c., "in a westerly direction; facing toward the west," from Middle English wester (adj.) "western" (mid-14c.), from Old English westra, variant of westerne (see western) + -ly (2). Cf. Old Norse (adv.). Middle English also had a verb wester "to go west." Related: Westerlies (n.). Somewhat contradictory sense of "coming from the west" attested by 1570s.

Online Etymology Dictionary, © 2010 Douglas Harper

westerlies in Science

westerly

[wĕstər-lē]

A wind, especially a prevailing wind, that blows from the west. The prevailing winds in the middle latitudes are westerlies. See illustration at wind.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

westerlies in Culture

westerly

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.