Definitions

1. adjective

given, done, or used for the purpose of atoning for a sin or guilt, or for a religious ritual; made or offered as a sacrifice

“The sacrificial lamb was chosen to save the flock.”

2. noun

a person or thing that is sacrificed or put to death for the benefit of others, especially as a form of atonement or appeasement

“The sacrificial goat was led to the altar.”