1. internal ear a complex system of interconnecting cavities
  2. internal rhyme a rhyme between words in the same line
  3. internal angle the angle inside two adjacent sides of a polygon
  4. infernal machine a bomb that has a detonating mechanism that can be set to go off at a particular time
  5. internalize incorporate within oneself; make subjective or personal
  6. intrinsic belonging to a thing by its very nature
  7. internal organ a main organ that is situated inside the body
  8. internal medicine the branch of medicine that deals with the diagnosis and (nonsurgical) treatment of diseases of the internal organs (especially in adults)
  9. internal drive a drive mounted inside of a computer
  10. internalise incorporate within oneself; make subjective or personal
  11. internal iliac artery the inner branch of the common iliac artery on either side of the body; divides into several branches that supply blood to the pelvic and gluteal areas
  12. internal secretion the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
  13. internal auditor an auditor who is an employee of the company whose records are audited and who provides information to the management and board of directors
  14. internal iliac vein a vein that unites with the external iliac vein to form the common iliac vein
  15. internal control an accounting procedure or system designed to promote efficiency or assure the implementation of a policy or safeguard assets or avoid fraud and error etc.
  16. international waters the open seas of the world outside the territorial waters of any nation
  17. internalization learning that is incorporated within yourself
  18. internal revenue government revenue from domestic sources (excluding customs)
  19. internalisation learning that is incorporated within yourself
  20. international ampere a former unit of electric current