[ puhs-choo l ]
/ ˈpʌs tʃʊl /


Pathology. a small elevation of the skin containing pus.
any pimplelike or blisterlike swelling or elevation.

Origin of pustule

1350–1400; Middle English < Latin pūstula, pūsula a pimple, blister; akin to Greek phȳsaléos inflated


pus·tuled, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for pustule

/ (ˈpʌstjuːl) /


a small inflamed elevated area of skin containing pus
any small distinct spot resembling a pimple or blister

Derived forms of pustule

pustular (ˈpʌstjʊlə), adjective

Word Origin for pustule

C14: from Latin pustula a blister, variant of pūsula; compare Greek phusallis bladder, phusa bellows
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

Medical definitions for pustule

[ pŭschōōl, pŭstyōōl ]


A small inflamed skin swelling that is filled with pus; a pimple.
A small swelling similar to a blister or pimple.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for pustule

[ pŭschōōl ]

A small inflamed swelling of the skin that is filled with pus.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.