Regius professorre·gius professor
[oftenR- P-; sometimesr- p-] any of the professors at certain British universities who hold chairs founded by the Crown
Origin of Regius professorModern Latin from Classical Latin regius, royal from rex (gen. regis), a king: see right
One holding a professorship established by royal subsidy at any of certain older British universities.
Origin of regius professorFrom Latin rēgius royal from rēx rēg- king ; see reg- in Indo-European roots.