crenation / krɪˈneɪ ʃən /

🎓大学词汇齿形齿科齿痕齿形识别

crenation 的定义

n. 名词 noun
  1. a rounded projection or tooth, as on the margin of a leaf.
  2. Anatomy. the state of being or becoming shrunken with a notched or indented edge.
  3. a notch between teeth.