Recorde, Robert, mathematician, born in Pembroke; a physician by profession, and physician to Edward VI. and Queen Mary; his works on arithmetic, algebra, &c., were written in the form of question and answer; died in the debtors' prison (1500‒1558).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Reclus, Elisée * Recorder