/in fek"sheuhs/, adj.
1. communicable by infection, as from one person to another or from one part of the body to another: infectious diseases.
2. causing or communicating infection.
3. tending to spread from one to another: infectious laughter.
4. Law. capable of contaminating with illegality; exposing to seizure or forfeiture.
5. Obs. diseased.
[1535-45; INFECT(ION) + -IOUS]
Syn. 1. catching. See contagious.

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Universalium. 2010.

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  • infectious — in|fec|tious [ ın fekʃəs ] adjective * 1. ) an infectious disease is one that can spread from one person to another: The condition is highly infectious. a ) used about a person or animal that has an infectious disease: The animals were still… …   Usage of the words and phrases in modern English

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