n. An honorific title applied to a priest who has a specific function.
the GNU version of the Collaborative International Dictionary of English
n. A chief priest; also, a kind of vicar, or a rural dean.
The Century Dictionary and Cyclopedia
n. Eccles., the chief among the priests, called by the Greeks protopresbyter, and later protopope.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a senior clergyman and dignitary
Word Usage
"Roughly the titles archpriest (archipresbyteros), protopriest (protoiereus, protopresbyteros), protopope (protopapas) may be taken as meaning; the same thing, though they have occasionally been distinguished."