plaque
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/plæk/
🇬🇧
/plæk/
A flat, usually metal or stone, sign with writing on it, often used to honor someone or something.
A plaque was unveiled at the school to commemorate the 100th anniversary.
A sticky film that builds up on teeth and can cause cavities and gum disease if not removed.
Regular brushing helps to prevent plaque from building up on your teeth.