pustule
pustule definition
pus·tule (pus′c̸ho̵̅o̅l′, -tyo̵̅o̅l′)
noun
- a small elevation of the skin containing pus
- any small elevation like a blister or pimple
Etymology: L pustula, blister, pimple < IE base *pu-, echoic of blowing out cheeks, puffing > Gr physa, breath, bubble
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