部位

bùwèi
part (esp. of the body, but also of a vegetable, e.g. the root, or a garment, e.g. the sleeve, etc)

CEDICT

Entry Composition

1 部 bù
  1. ministry
  2. department
  3. section
  4. part
  5. division
  6. troops
  7. board
  8. classifier for works of literature, films, machines etc
2 位 wèi
  1. position
  2. location
  3. place
  4. seat
  5. classifier for people (honorific)
  6. classifier for binary bits (e.g. 十六位 16-bit or 2 bytes)
  7. (physics) potential