Containing or generating contagion; catching; that may be communicated by contact, or by a subtil excreted matter; as a contagious disease.

Poisonous; pestilential; containing contagion; as contagious air; contagious clothing.

Containing mischief that may be propagated; as contagious example.

That may be communicated from one to another, or may excite like affections in others. His genius rendered his courage more contagious.