is machining

• present progressive

  present progressive

  Used to describe an ongoing action or state that is currently taking place in the immediate present.

  of machine (3rd person singular).
  machine

  noun

  an apparatus consisting of interrelated parts with separate functions, used in the performance of some kind of work.

Related Words

• apparatus
• appliance
• automobile
• engine
• gadget
• instrument
• motor
• tool
• vehicle