e·ma·ci·ate (?-m??sh?-?t?)tr. & intr.v. e·ma·ci·at·ed, e·ma·ci·at·ing, e·ma·ci·ates To make or become extremely thin, especially as a result of starvation.[Latin ?maci?re, ?maci?t- : ?-, ex-, intensive pref.; see ex- + maci?re, to make thin; see m?k- in Indo-European roots.]e·ma?ci·a?tion n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.emaciate (??me?s??e?t) vb (usually tr) to become or cause to become abnormally thin[C17: from Latin ?maci?re to make lean, from macer thin] e?maci?ation nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014e?ma?ci?ate (??me? ?i?e?t) v.t. -at?ed, -at?ing. to make abnormally thin by a gradual wasting away of flesh. [1640?50;