Proctorial is an adjective. The adjective is the word that accompanies the noun to determine or qualify it.

What is a Proctorial?

n. A supervisor especially of an examination or dormitory in a school. tr.v. proc·tored, proc·tor·ing, proc·tors. To supervise (an examination).

What is the verb of Proctor?

proctor Add to list Share. A proctor keeps an eye on students who are taking a test to make sure they don't cheat. ... Proctor is both a noun and a verb, so you might say that a proctor's job is to proctor, or make sure no test-takers' eyes are straying.