The Collaborative International Dictionary of English v.0.48:
Secular \Sec"u*lar\, a. [OE. secular, seculer. L. saecularis,
fr. saeculum a race, generation, age, the times, the world;
perhaps akin to E. soul: cf. F. s['e]culier.]
1. Coming or observed once in an age or a century.
The secular year was kept but once a century.
2. Pertaining to an age, or the progress of ages, or to a
long period of time; accomplished in a long progress of
time; as, secular inequality; the secular refrigeration of
3. Of or pertaining to this present world, or to things not
spiritual or holy; relating to temporal as distinguished
from eternal interests; not immediately or primarily
respecting the soul, but the body; worldly.
New foes arise,
Threatening to bind our souls with secular chains.
4. (Eccl.) Not regular; not bound by monastic vows or rules;
not confined to a monastery, or subject to the rules of a
religious community; as, a secular priest.
He tried to enforce a stricter discipline and
greater regard for morals, both in the religious
orders and the secular clergy. --Prescott.
5. Belonging to the laity; lay; not clerical.
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
Secular music, any music or songs not adapted to sacred
Secular hymn or Secular poem, a hymn or poem composed for
the secular games, or sung or rehearsed at those games.