Seventh-Day: Meaning and Definition of

Sev•enth-Day

Pronunciation: (sev'unth-dā"), [key]
— adj.
  1. designating certain Christian denominations that make Saturday their chief day of rest and religious observance: Seventh-Day Adventists.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.