exarch 1
— exarchal , adj.
/ek"sahrk/ , n.
1. Eastern Ch.
a. a patriarch's deputy.
b. a title originally applied to a patriarch but later applied only to a bishop ranking below a patriarch and above a metropolitan.
2. the ruler of a province in the Byzantine Empire.
[ 1580-90; exarchus superintendent éxarchos overseer, leader, equiv. to ex- EX- 3 + -archos -ARCH ]
exarch 2
/ek"sahrk/ , adj. Bot.
(of a primary xylem or root) developing from the center; having the youngest cells closest to the core.
[ 1890-95; EX- 2 + Gk arché beginning ]