infect

American  

[in-fekt] / ɪnˈfɛkt /

verb (used with object)

1. to affect or contaminate (a person, organ, wound, etc.) with disease-producing germs.

2. to affect with disease.

3. to taint or contaminate with something that affects quality, character, or condition unfavorably.

   to infect the air with poison gas.

4. to corrupt or affect morally.

   The news of the gold strike infected him with greed.

5. to imbue with some pernicious belief, opinion, etc.

   Synonyms:

   corrupt, damage

6. to affect with a computer virus.

   Synonyms:

   arouse, stir, touch

7. to affect so as to influence feeling or action.

   His courage infected the others.

8. Law. to taint with illegality, or expose to penalty, forfeiture, etc.

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verb (used without object)

1. to become infected.

adjective

1. Archaic. infected.

infect British  

/ ɪnˈfɛkt /

verb

1. to cause infection in; contaminate (an organism, wound, etc) with pathogenic microorganisms

2. (also intr) to affect or become affected with a communicable disease

3. to taint, pollute, or contaminate

4. to affect, esp adversely, as if by contagion

5. computing to affect with a computer virus

6. international law to taint with crime or illegality; expose to penalty or subject to forfeiture

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adjective

1. archaic contaminated or polluted with or as if with a disease; infected

Usage

What does infect mean? Infect is a verb that means to taint someone or something with disease-causing germs or to spread a disease to another living thing, as in The doorknob was infected with disease-causing bacteria. Infect can also mean to taint something in a way that negatively affects quality, as in The water was infected with toxic chemicals. Computers and other devices that connect to the internet can also become infected. Instead of a virus of living organisms infecting your computer, though, bits of  code attack your computer system to do harm.Infect is also used figuratively to mean to corrupt something in various ways. It can mean something was corrupted morally, as in The constant flattery caused him to be infected with hubris. Infect can also be used to mean someone has been corrupted by harmful thoughts or beliefs, as in He allowed hatred to infect his mind. The adjective infectious is used to mean something is capable of infecting things, as in Doctors worked to stop the spread of the infectious disease. Infect can be confused with infest, which means to overrun a place or live there in an unwanted manner.Example: Tia stayed home from school so she wouldn’t infect her classmates with the flu. 

Other Word Forms

• infectant adjective
• infectedness noun
• infecter noun
• infector noun
• noninfected adjective
• noninfecting adjective
• preinfect verb (used with object)
• reinfect verb (used with object)
• uninfected adjective

Etymology

Origin of infect

1350–1400; Middle English infecten < Latin infectus (past participle of inficere to immerse in dye, discolor, taint, poison), equivalent to in- in- ² + -fec-, combining form of facere to do ¹, make ( fact ) + -tus past participle suffix

Example Sentences

She said they were infected soon after Darren arrested a suspect who was displaying symptoms of the virus.

From BBC

Lyme disease is a bacterial infection that can be spread to humans by infected ticks, and affects an estimated 476,000 Americans each year.

From The Wall Street Journal

Kluh’s district uses X-rays to sterilize males but there are other methods, such as using genetically modified insects or ones infected with bacteria.

From Los Angeles Times

The start of the outbreak was a super-spreader event - when an unusually large number of people are infected - at the nightclub Club Chemistry in Canterbury between 5 March and 7 March.

From BBC

The danger is that the infected body cannot stave off fever, headaches or other basic illnesses.

From The Wall Street Journal

Related Words

• affect
• poison
• taint
• touch