探頭

探头
tàntóu
  1. to stick one's head out (from behind sth); to pop one's head in (through a window etc)
  2. probe; sensor

CEDICT

Entry Composition

1 探 tàn
  1. to explore
  2. to search out
  3. to scout
  4. to visit
  5. to stretch forward
=2 頭 tóu
  1. head
  2. hair style
  3. the top
  4. end
  5. beginning or end
  6. a stub
  7. remnant
  8. chief
  9. boss
  10. side
  11. aspect
  12. first
  13. leading
  14. classifier for pigs or livestock

classifier: 個
=2 頭 tou suffix for nouns