from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Fever.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. fever

from the GNU version of the Collaborative International Dictionary of English

  • n. The febrile condition.

from The Century Dictionary and Cyclopedia

  • n. A higher bodily temperature than is normal; fever.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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


New Latin, from Greek purexis, from puressein, to have a fever, from puretos, fever; see pyretic.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Ancient Greek πυρεξία (pyrexia, "feverishness"), from πυρετός (pyretos, "fever"). (Wiktionary)



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