1. flat pieces of metal, wood, or other material with writing on them, used as awards or memorials
2. sticky deposits of bacteria that form on teeth
Usage: dental/medical
3. abnormal patches or deposits in arteries or on organs
Usage: medical

Examples

• The school displayed bronze plaques honoring distinguished alumni.
• She received several plaques for her volunteer work.
• The dentist removed plaque buildup during the cleaning.
• Regular brushing helps prevent plaque formation on teeth.
• Arterial plaques can restrict blood flow to the heart.
• The memorial wall featured marble plaques with veterans’ names.
• Flossing daily reduces plaque between teeth.