The secular year was kept but once a century. Addison.

New foes arise,
Threatening to bind our souls with secular chains. Milton.

He tried to enforce a stricter discipline and greater regard for morals, both in the religious orders and the secular clergy. Prescott.

I speak of folk in secular estate. Chaucer.

Secular equation (Astron.), the algebraic or numerical expression of the magnitude of the inequalities in a planet's motion that remain after the inequalities of a short period have been allowed for. -- Secular games (Rom. Antiq.), games celebrated, at long but irregular intervals, for three days and nights, with sacrifices, theatrical shows, combats, sports, and the like. -- Secular music, any music or songs not adapted to sacred uses. -- Secular hymn or poem, a hymn or poem composed for the secular games, or sung or rehearsed at those games.