Medical Dictionary
3 ENTRIES FOUND:

pernicious

adj per·ni·cious \pər-ˈnish-əs\

Medical Definition of PERNICIOUS

:  highly injurious or destructive :  tending to a fatal issue :  deadly <pernicious disease>
April 20, 2015
ailurophile Hear it
a lover of cats
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears