An inhuman instrument which was commonly used in the first stages of torture by the Spanish inquisition. It was in use in England also. The REV. Wm. Carstairs was the last who suffered by it before the Privy Council, to make him divulge secrets entrusted to him, which he firmly resisted. After the revolution in 1688, the thumb-screw was given him as a present by the council. King William expressed a desire to see it on, bidding the doctor to turn the screw; but at the third turn he cried out, �Hold! Hold! Doctor; another turn would make me confess anything.�