凹凸形

āotūxíng
crenelated; corrugated

CEDICT

Entry Composition

1 凹凸 āotū
  1. concave or convex
  2. bumps and holes
  3. uneven (surface)
  4. rugged
2 形 xíng
  1. to appear
  2. to look
  3. form
  4. shape