Definition, Meaning & Synonyms

anergy

Noun

/ˈæn.ər.dʒi/

Definition

Anergy refers to a lack of energy or vitality, and in a medical context, it often describes a state where the immune system fails to respond properly to an antigen.

Examples

The patient’s anergy prevented any immune response to the vaccine.
In young children, anergy can be a sign of an underlying health issue.
Anergy can result from prolonged stress or illness, leading to fatigue and weakness.

Meaning

It is commonly used in immunology to describe a situation where the immune response is not activated, even in the presence of a stimulus that would normally provoke it.