py·ro·gen (p  r -jn)n. A substance that produces fever. |
pyrogen [ˈpaɪrəʊˌdʒɛn]
n
(Chemistry / Elements & Compounds) any of a group of substances that cause a rise in temperature in an animal body
| pyrogen (pr-jn) A polypeptide that produces fever by causing metabolic changes in the hypothalamus. Pyrogens are either exogenous (produced by infectious agents) or endogenous (produced by cells in the body such as macrophages). |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | pyrogen - any substance characterized by its great flammability substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man" |
| 2. | pyrogen - any substance that can cause a rise in body temperature substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man" |
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