1) Deficiency of energy 2) Deficiency of vigor 3) Immunological disorder 4) Inactivity and lack of energy 
• (n.) Lack of energy; inactivity.
A depression or lack of normal immunological function either generalised or antigen specific. ... (18 Nov 1997) ... 
(an´әr-je) lack of energy; extreme passivity. diminished reactivity to specific antigen(s). adj., aner´gic., adj.
Failure of lymphocytes that have been primed to respond to second exposure to the antigen. Consequence is a depression or lack of normal immunological function.
Type: Term Pronunciation: an′er-jē Definitions: 1. In a person, absence of the ability to generate a sensitivity reaction to substances expected to be antigenic (immunogenic, allergenic). 2. Lack of energy.
Anergy: A state of immune unresponsiveness. Induced when the T cell's antigen receptor is stimulated, effectively freezing T cell responses pending a 'second signal' from the antigen-presenting cell. The delivery of the second signal by the antigen-presenting cell rescues the activated T cell from anergy, allowing it to produce the lymphokines nece...
Potentially reversible specific immunological tolerance in which the lymphocyte becomes functionally nonresponsive.
[n] - reduction or lack of an immune response to a specific antigen 2. [n] - inactivity and lack of energy
anergy Lacking energy.
the loss or weakening of immune response to an irritating agent or antigen. Anergy can be thought of as the opposite of allergy, which is an overreaction to a substance. The strength of the immune response is often quantitatively evaluated by standardized skin tests. A small amount of solution containing an antigen known to cause a response, such a...
peripheral tolerance mechanism that prevents self-reactive T cells from being activated by self-antigens through lack of co-stimulation
noun reduction or lack of an immune response to a specific antigen
The hypothesis interpreting sensations in terms of the infinite phases of negative energy, which is motion less than zero. (Montague.) -- H.H.
deficiency of energy. · lack of immunity to an antigen.