1. auxiliary furnishing added support
  2. auxiliary storage a data storage device that is not the main memory of a computer
  3. auxiliary engine a small engine
  4. auxiliary boiler an extra boiler
  5. auxiliary airfield an airfield that functions in a subsidiary capacity
  6. auxiliary cell a terrorist cell responsible for logistics
  7. auxiliary equipment electronic equipment not in direct communication (or under the control of) the central processing unit
  8. auxiliary operation a operation performed by off-line equipment not under the control of the central processing unit
  9. auxiliary pump a supplementary pump available if needed
  10. auxiliary research submarine a submarine for research purposes
  11. auxiliary verb a verb that combines with another verb in a verb phrase to help form tense, mood, voice, or condition of the verb it combines with