| 释义 |
py·ro·gen
\ˈpīrəjə̇n, -ˌjen\ noun
(-s)
Etymology: International Scientific Vocabulary pyr- + -gen
1.
a. obsolete : an element (as sulfur or phosphorus) characterized by great flammability
b. : a substance produced by the action of heat
2. : a fever-producing substance (as various thermostable products of bacterial metabolism) |