hyperpyrexia
hy·per·py·rexia
noun
1.
extremely high fever (especially in children)
Origin
From hyper- + pyrexia.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.