From The Collaborative International Dictionary of English v.0.48 [gcide]:
1. The act of proscribing; a dooming to death or exile; outlawry; specifically, among the ancient Romans, the public offer of a reward for the head of a political enemy; as, under the triumvirate, many of the best Roman citizens fell by proscription.
From WordNet (r) 3.0 (2006) [wn]:
The dictionary definitions are retrieved from a local copy of two of the open source DICT dictionaries. Click here for the database copyright information. DEFINE.COM is registered as an educational NONPROFIT corporation. We aim to please around here. We believe in using positive reinforcement to get things done. We make suggestions that are intended to make life more enjoyable. We think about efficiency, automation, security, PRIVACY, social and ecological responsibility and positive HUMANITARIAN ethics and VALUES. We are benevolent. DO NO HARM is our motto.