[ verb puhs-chuh-leyt; adjective puhs-chuh-lit, -leyt ]
/ verb ˈpʌs tʃəˌleɪt; adjective ˈpʌs tʃə lɪt, -ˌleɪt /

verb (used with object), pus·tu·lat·ed, pus·tu·lat·ing.

to cause to form pustules.

verb (used without object), pus·tu·lat·ed, pus·tu·lat·ing.

to become pustular.


covered with pustules.

Origin of pustulate

1600–10; < Late Latin pūstulātus, past participle of pūstulāre to blister. See pustule, -ate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pustulate

British Dictionary definitions for pustulate


verb (ˈpʌstjʊˌleɪt)

to form or cause to form into pustules

adjective (ˈpʌstjʊlɪt, -ˌleɪt)

covered with pustules

Derived Forms

pustulation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for pustulate


[ pŭschə-lāt′ ]


To form or cause to form pustules.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.