external examiner for learners of EnglishPowered by COBUILD or external expert
adjective [ADJ n]
Externalexperts, for exampleexternal examiners, come into an organization from outside in order to do a particular jobfairly and impartially, or to check that a particular job was done properly. [mainly British]
externallyadverb [ADV -ed] ⇒ There must be externally moderated tests.