Pathology. deficiency of energy.
Immunology. lack of immunity to an antigen.
Origin of anergy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for anergic
Historical Examples of anergic
He is certainly wrong in denying "negativism" to his anergic type.
Sex is important in determining the nature of the stupor, for he found the anergic type following mania in females only.
lack of energy
immunol diminution or lack of immunity to an antigen
Word Origin for anergy
from New Latin anergia, from an- + Greek ergon work
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
Absence of sensitivity to substances that would normally elicit an antigenic response.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.