English Reference

Word

anorexia

Phoneticsanorex·ia

US/ˌænɝˈɛksiə/

UK/ˌænɔːɹˈɛksiə/

Definitions

01eating disorder

C1 · Medicine

n. a serious mental health condition where a person limits their food intake to a dangerous level because they fear gaining weight.

n. Abbreviation for anorexia nervosa; a clinical eating disorder characterized by an obsessive desire to lose weight by refusing to eat.

“The doctor explained that anorexia is a complex illness that requires professional support.”

“Early intervention is critical in treating anorexia, as the physiological effects of prolonged starvation can become life-threatening without specialized psychiatric care.”

Technical

Usage

Often used as an uncountable noun in general contexts.

Synonyms

eating disorder

02loss of appetite

C2 · Medicine

n. a medical symptom where you lose your desire to eat, often because of a physical illness or medication.

n. The symptomatic loss of appetite for food, occurring as a secondary effect of various physiological diseases or medical treatments.

“One side effect of the new medication was a temporary anorexia.”

“The patient presented with significant weight loss and persistent anorexia following the aggressive course of chemotherapy.”

Technical · Formal

Usage

In this sense, it is frequently used as a countable noun to describe a specific symptom.

Synonyms

inappetence

Antonyms

Real-World Examples

“Despite my credentials in nutrition and psychology, my deepest understanding of eating disorders comes from my own personal experience with anorexia.”
The Conversation · 17 Aug 2026
“They restricted the rats’ food and allowed them to voluntarily access a running wheel to model symptoms of anorexia .”
Smithsonian Magazine · 11 Aug 2026

Etymology

From Ancient Greek ἀνορεξία (anorexía), from ἀν- (an-, “without”) + ὄρεξις (órexis, “appetite”). By surface analysis, an- + -orexia.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

anorexiaNounanorexicNoun

Domain

Medicine

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

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English Reference