Infect meaning

ĭn-fĕkt'
The definition of infect is to contaminate someone or something with a disease or with some other negative element.

An example of infect is when you give someone a cold.

An example of infect is when you have a very bad attitude which spreads to others who you know.

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To invade and proliferate in, often resulting in disease. Used of microorganisms or other infectious agents.

People who were infected with salmonella.

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To cause the invasion of (a cell, for example) with a microorganism or other infectious agent.

The researchers infected the bacteria with a virus.

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To transmit a pathogen or disease to.

The sick child infected the entire class.

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To contaminate with a pathogenic microorganism or agent.

Cholera infected the water supply.

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To become transmitted to and copied on (a hard drive, for example). Used of a virus or other harmful software.
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To affect by transmission or be communicated to. Used of an idea, emotion, or attitude.
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To contaminate with a disease-producing organism or matter.
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To cause to become diseased by bringing into contact with such an organism or matter.
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To invade (an individual, organ, tissue, etc.)
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To affect or imbue with feelings, beliefs, etc. that are regarded as negative or harmful.
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To invade for the purpose of disrupting the functioning of.
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To invade and proliferate in, often resulting in disease. Used of microorganisms or other infectious agents.

People who were infected with salmonella.

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To cause the invasion, as of a cell, with a microorganism or other infectious agent.

The researchers infected the bacteria with a virus.

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To transmit a pathogen or disease to.

The sick child infected the entire class.

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To contaminate with a pathogenic microorganism or agent.

Cholera infected the water supply.

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To bring into contact with a substance that causes illness (a pathogen).
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To make somebody enthusiastic about one's own passion.

Her passion for dancing has infected me.

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(obsolete) Infected.

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Origin of infect

Middle English infecten to afflict with disease from Latin īnficere īnfect- to stain, infect (in- in in–2) (facere to do dhē- in Indo-European roots)