1. inner tube an inflatable rubber tube that fits inside the casing of a pneumatic tire
  2. inheritable capable of being inherited
  3. innate present at birth but not necessarily hereditary
  4. inert unable to move or resist motion
  5. inherited occurring among members of a family usually by heredity
  6. inherit receive from a predecessor
  7. inheritor a person who is entitled by law or by the terms of a will to inherit the estate of another
  8. anaerobe an organism that does not require air or free oxygen to live
  9. inherent existing as an essential constituent or characteristic
  10. inertia the tendency of something to stay in rest or motion
  11. dinner table the dining table where dinner is served and eaten
  12. unratable not subject to locally assessed property taxes
  13. unneurotic not neurotic
  14. innards the organs in a body, collectively
  15. unaerated (used of blood) not supplied with oxygen
  16. venerate regard with feelings of respect and reverence
  17. counter tube a measuring instrument for counting individual ionizing events
  18. innervate stimulate to action
  19. unreadable not easily deciphered
  20. anorthopia distorted vision in which straight lines appear curved