Definition

1. Noun:
   • A condition of having a body temperature above the normal range; fever: "Pyrexia" is a medical term for an elevated body temperature, typically as a sign of illness or infection.

Usage

• "Pyrexia" is a formal, clinical term used primarily in medical contexts. It is synonymous with "fever" but is more technical. It is used to describe the symptom itself, not the underlying disease.
• It is most commonly used by healthcare professionals in documentation, diagnosis, and scientific literature.

Examples

• Noun:
  • The patient presented with pyrexia and a sore throat.
  • Persistent pyrexia is a key indicator for further investigation.
  • The treatment aimed to reduce the pyrexia and manage the infection.

Advanced Usage

• "Pyrexia of unknown origin (PUO)" or "Fever of unknown origin (FUO)": A standard medical term for a fever that persists without an obvious cause despite diagnostic efforts.
  • The case was classified as pyrexia of unknown origin after three weeks of testing.

Variants and Related Words

• Febrile (adj): Relating to or characterized by fever.
  • The patient was in a febrile state.
• Antipyretic (n/adj): (A substance) used to reduce fever.
  • Paracetamol is a common antipyretic medication.

Synonyms

• Fever: The most common and general synonym.
• Febrility: A less common synonym with the same meaning.
• Hyperthermia: In strict medical terms, this can refer to an elevated body temperature, though it sometimes implies a specific type of temperature rise not caused by a reset hypothalamus (unlike pyrexia/fever).

Antonyms

• Normothermia: A normal body temperature.
• Hypothermia: A body temperature below the normal range.

Noun

1. a rise in the temperature of the body; frequently a symptom of infection