The direction or point on the mariner's compass halfway between due east and east-southeast, or 101°15ʹ east of due north.(noun)
Toward or from east by south.(adverb)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.