空穴

kòngxué
electron hole (physics)

CEDICT

physics

Entry Composition

1 空 kòng
  1. to empty
  2. vacant
  3. unoccupied
  4. space
  5. leisure
  6. free time
2 穴 xué
  1. cave
  2. cavity
  3. hole
  4. acupuncture point
  5. Taiwan pr. xuè