incurvation

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a shape that curves or bends inward
• Syn:
concave shape, concavity, incurvature
• Derivationally related forms:
incurvate, concave (for: concavity)
• Hypernyms:
solid
• Hyponyms:
dome, pit, fossa, recess, recession,
niche, corner, bowl, trough, scoop, pocket,
depression, impression, imprint, cup, indentation, indenture
2. the action of creating a curved shape
• Derivationally related forms:
incurvate
• Hypernyms:
bending

• Từ đồng nghĩa / Synonyms:
  concave shape, concavity, incurvature