Infectious

Definition of Infectious

In`fec´tious

a.	1.
	1.	Having qualities that may infect; communicable or caused by infection; pestilential; epidemic; as, an infectious fever; infectious clothing; infectious water; infectious vices. Where the infectious pestilence. - Shak.
	2.	Corrupting, or tending to corrupt or contaminate; vitiating; demoralizing. It [the court] is necessary for the polishing of manners . . . but it is infectious even to the best morals to live always in it. - Dryden.
	3.	(Law) Contaminating with illegality; exposing to seizure and forfeiture. Contraband articles are said to be of an infectious nature. - Kent.
	4.	Capable of being easily diffused or spread; sympathetic; readily communicated; as, infectious mirth. The laughter was so genuine as to be infectious. - W. Black.

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