镂空

鏤空
lòukōng
  1. openwork
  2. fretwork

CEDICT

  1. cutout; carving; openwork; fretwork
  2. to hollow out; to carve out; to engrave

Wiktionary

凋刻出穿透物体的图桉或文字。多用于窗格、屏风、服饰、玉器等。

重編國語辭典

Entry Composition

1 镂 lòu
  1. to engrave
  2. to carve
  3. hard steel
2 空 kōng
  1. empty
  2. air
  3. sky
  4. in vain