contagious

[Con*ta·gious]

You should probably postpone dinner if your date's cold is contagious that means it's easily spread and likely to get you sick.

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Communicable by contact, by a virus, or by a bodily exhalation; catching; as, a contagious disease.

Adjective S.
(of disease) capable of being transmitted by infection

Adjective S.
easily diffused or spread as from one person to another; "a contagious grin"

Adjective
of or relating to communicable diseases; "by the road to the contagious hospital"

a.
Communicable by contact, by a virus, or by a bodily exhalation; catching; as, a contagious disease.

a.
Conveying or generating disease; pestilential; poisonous; as, contagious air.

a.
Spreading or communicable from one to another; exciting similar emotions or conduct in others.

Contagious

Con*ta"gious , a. [L. contagiosus: cf. F. contagieux.] 1. (Med.) Communicable by contact, by a virus, or by a bodily exhalation; catching; as, a contagious disease. 2. Conveying or generating disease; pestilential; poisonous; as, contagious air. 3. Spreading or communicable from one to another; exciting similar emotions or conduct in others.
His genius rendered his courage more contagious.
The spirit of imitation is contagious.
Syn. -- Contagious, Infectious. These words have been used in very diverse senses; but, in general, a contagious disease has considered as one which is caught from another by contact, by the breath, by bodily effluvia, etc.; while an infectious disease supposes some entirely different cause acting by a hidden influence, like the miasma of prison ships, of marshes, etc., infecting the system with disease. "This distinction, though not universally admitted by medical men, as to the literal meaning, of the words, certainly applies to them in their figurative use. Thus we speak of the contagious influence of evil associates; their contagion of bad example, the contagion of fear, etc., when we refer to transmission by proximity or contact. On the other hand, we speak of infection by bad principles, etc., when we consider anything as diffused by some hidden influence.

Communicable by contact, by a virus, or by a bodily exhalation; catching; as, a contagious disease.

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Usage Examples

A healthy attitude is contagious but don't wait to catch it from others. Be a carrier.

You may not always have a comfortable life and you will not always be able to solve all of the world's problems at once but don't ever underestimate the importance you can have because history has shown us that courage can be contagious and hope can take on a life of its own.

There is no passion so contagious as that of fear.

Freedom is the most contagious virus known to man.

Misspelled Form

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Other Usage Examples

Nothing is so contagious as example and we never do any great good or evil which does not produce its like.

Remember that happiness is as contagious as gloom. It should be the first duty of those who are happy to let others know of their gladness.

No company is preferable to bad. We are more apt to catch the vices of others than virtues, as disease is far more contagious than health.

A lot of people over time have had this kind of pattern in their relationship with Bill Clinton. You first meet him and you're overwhelmed by his talent. He's so energetic and articulate and full of ideas and he calls himself a congenital optimist and that optimism is contagious.

Even if you're unhappy, just pretend that you're happy. Eventually, your smile will be contagious to yourself. I had to learn that. I used to think, 'I'm being fake,' but you know what? Better to be fake and happy than real and miserable.