Definify.com
Webster 1913 Edition
Agnus Dei
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Ag′nus De′i
.[L., lamb of God.]
(R. C. Ch.)
(a)
A figure of a lamb bearing a cross or flag.
(b)
A cake of wax stamped with such a figure. It is made from the remains of the paschal candles and blessed by the Pope.
(c)
A triple prayer in the sacrifice of the Mass, beginning with the words “Agnus Dei.”