凹凸性 āo tū xìng

concavity (math.)

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. concavity (math.)

Characters

Character Meaning
凹 āo HSK 6
concave; sunken; indented
凸 tū HSK 6
to stick out; protruding; convex
性 xìng HSK 4
nature; character; quality