Definify.com
Webster 1913 Edition
Pustulation
Pus-tu-la′tion
,Noun.
 [L. 
pustulatio
.] The act of producing pustules; the state of being pustulated. 
Definition 2025
pustulation
pustulation
English
Noun
pustulation (countable and uncountable, plural pustulations)
- The act of producing pustules.
 - The state of being pustulated.