Meaning

• A secular ecclesiastic, or one not bound by monastic rules.

• A church official whose functions are confined to the vocal department of the choir.

• A layman, as distinguished from a clergyman.

Meaning

• Not specifically religious; lay or civil, as opposed to clerical.

• Temporal; worldly, or otherwise not based on something timeless.

• Not bound by the vows of a monastic order.

  "secular clergy in Catholicism"

• Happening once in an age or century.

  "The secular games of ancient Rome were held to mark the end of a saeculum and the beginning of the next."

• Continuing over a long period of time, long-term.

  "The long-term growth in population and income accounts for most secular trends in economic phenomena."

• Centuries-old, ancient.

• Relating to long-term non-periodic irregularities, especially in planetary motion or magnetic field.

• (atomic physics) Unperturbed over time.