Wordnet 3.0
NOUN (1)
1.
any substance that can cause a rise in body temperature;
[syn: pyrogen, pyrectic]
ADJECTIVE (1)
1. having or causing fever;
WordNet (r) 3.0 (2006):
pyrectic
adj 1: having or causing fever
n 1: any substance that can cause a rise in body temperature
[syn: pyrogen, pyrectic]