[ ee-ster-lee ]
/ ˈi stər li /


moving, directed, or situated toward the east: an easterly course.
(especially of a wind) coming from the east: an easterly gale.


toward the east.
from the east.

noun, plural east·er·lies.

a wind that blows from the east.

Origin of easterly

1540–50; obsolete easter eastern (see easterling) + -ly


east·er·li·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for easterlies

  • The “westerlies” meet “easterlies” from the polar highs at about 50-60° N. and S.

    Deserts|A. S. Walker

British Dictionary definitions for easterlies

/ (ˈiːstəlɪ) /


of, relating to, or situated in the east

adverb, adjective

towards or in the direction of the east
from the eastan easterly wind

noun plural -lies

a wind from the east
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

Science definitions for easterlies

[ ēstər-lē ]

A wind, especially a prevailing wind, that blows from the east. The trade winds in tropical regions and the prevailing winds in the polar regions are easterlies. See illustration at wind.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.