Pronunciation: (ag'nus dē'ī, de'ē; ä'nyoos de'ē),[key] 1. Eccles. a. a figure of a lamb as emblematic of Christ.
b. such a representation with the nimbus inscribed with the cross about its head, and supporting the banner of the cross.
2. a prayer addressed to Christ as Savior preceding the communion in the Mass.
3. a musical setting of this prayer.