What does "secular clergy" mean?

One of two branches of the clergy, composed of deacons and priests who are not monastics and do not belong to religious orders.

Secular clergy

noun

noun ·Rare ·Advanced level

Noun

1
One of two branches of the clergy, composed of deacons and priests who are not monastics and do not belong to religious orders. uncountable

secular + clergy, learned borrowing from Latin clerici saeculares, clēricī + saeculārēs