was fingerprinting

• past progressive

  past progressive

  Used to describe an ongoing action or continuous state that was happening at a specific time in the past.

  of fingerprint.
  fingerprint

  noun

  an impression of the markings of the inner surface of the last joint of the thumb or other finger.

More Suggestions

• brain fingerprinting
• finger painting
• finger-pointing
• genetic fingerprinting
• DNA fingerprint
• discharge printing
• fingerprint
• finger reading
• resist printing