Dictionary.com
Thesaurus.com

presuppurative

American  
[pree-suhp-yuh-rey-tiv] / priˈsʌp yəˌreɪ tɪv /

adjective

Pathology.
  1. noting or pertaining to the stage of inflammation before the formation of pus.


Etymology

Origin of presuppurative

pre- + suppurative