Emily Dickinson Lexicon

CON-TA'GIOUS, a.

1. Containing or generating contagion; catching; that may be communicated by contact, or by a subtle excreted matter; as, a contagious disease.
2. Poisonous; pestilential; containing contagion; as, contagious air; contagious clothing.
3. Containing mischief that may be propagated; as, contagious example.
4. That may be communicated from one to another, or may excite like affections in others. His genius rendered his courage more contagious. – Wirt.