Concise Bible Dictionary:
Both in the Hebrew and in the Greek the words signify “knowledge,” and are generally so translated. They are rendered “science” only in Daniel 1:4, where “knowledge” and “wisdom” are also mentioned; and in 1 Timothy 6:20, where it is science, or knowledge, “falsely so called,” doubtless alluding in Daniel to the speculations of the Magi, and in the Epistle to Timothy to the philosophers or Gnostic heretics, whose “knowledge” had no real foundation.