noun
: a deputy or subordinate governor: as
a. : an elected official serving as deputy to the governor of an American state and as his successor in case of death or removal from office and usually presiding over the upper house of the state legislature
b. : the formal head of the government of a Canadian province appointed by the federal government as the representative of the crown and resembling the governor-general in power and function
the power of the lieutenant governors to reserve provincial bills for the approval of the Dominion government — Alexander Brady