Pyrexia

Part of speech: noun

Pronunciation: /pʌɪˈrɛk.si.ə/

Definitions

1. A condition characterized by an abnormally elevated body temperature above the normal range, typically occurring as a response to infection, inflammation, or other physiological disturbances
2. An abnormal increase in body temperature above the typical level, usually resulting from immune responses to illness, infection, or other health-related issues
3. A state where the body's temperature rises beyond the normal limits, often caused by inflammatory processes, infections, or various medical conditions

Etymology: Ancient Greeks had a word for fever that was built from "pur", meaning fire. "Puretos" referred to the burning heat of a fever, and from it they formed "purexia", a state of feverishness. Latin writers later borrowed that Greek form, and "pyrexia" passed into English as a learned medical term, so the fire in the word is literal: the body was imagined as burning. English speakers, then, have been describing fever through a metaphor of flame for well over two thousand years, even though the modern word is a Latinized borrowing rather than a native English one. The word sits quietly alongside its more familiar relative "pyre", the pile of wood on which bodies were burned, which shares the same Greek root for fire.

Synonyms: fever, hyperthermia, elevated temperature, febrile condition, high temperature

Antonyms: hypothermia, normothermia