Abscission

Part of speech: noun (n.)

1. The act or process of cutting off. "Not to be cured without the abscission of a member." Jer. Taylor.

2. The state of being cut off. Sir T. Browne.

3. A figure of speech employed when a speaker having begun to say a thing stops abruptly: thus, "He is a man of so much honor and candor, and of such generosity -- but I need say no more."