D defs.my
Entry 1 sense Webster, 1913

Proconsul

/prōk-än'-səl/ · Pro·con·sul · IPA /pɹoʊˈkɑn.səl/
01 n. An officer who discharged the duties of a consul without being himself consul; a governor of, or a military commander in, a province. He wa…
  1. 1.
    An officer who discharged the duties of a consul without being himself consul; a governor of, or a military commander in, a province. He was usually one who had previously been consul.(Rom. Antiq.)