牙菌斑

yájūnbān
dental bacterial plaque

CEDICT

dental plaque

Wiktionary

牙齒及牙齦表面逐漸沉積的微生物薄膜

維基詞典

Entry Composition

1 牙 yá
  1. tooth
  2. ivory

classifier: 顆
2 菌 jūn
  1. germ
  2. bacteria
  3. fungus
  4. mold
  5. Taiwan pr. jùn
3 斑 bān
  1. spot
  2. colored patch
  3. stripe
  4. spotted
  5. striped
  6. variegated