Meaning & Definition of word "Infection"

Infection

/ɪnˈfɛkʃən/

noun:

  • 1. The invasion of the body by pathogenic microorganisms that reproduce and multiply, often resulting in disease.
    • Example: The doctor diagnosed her with a respiratory infection that required immediate treatment.
  • 2. A disease caused by the presence of microorganisms in the body.
    • Example: The infection spread rapidly through the nursing home, affecting many residents.
  • 3. The act of infecting or the condition of being infected.
    • Example: Proper hygiene is essential to prevent the spread of infection in hospitals.
  • 4. An infectious disease.
    • Example: The flu is a common viral infection that can lead to serious complications.

Etymology

Late Middle English: from Latin infectio(n-), from the verb inficere 'taint, dye, infect'.

Common Phrases and Expressions

viral infection:

An illness caused by a virus.

bacterial infection:

An illness caused by bacteria.

chronic infection:

An infection that persists over time.

hospital-acquired infection:

An infection acquired during hospitalization.

Related Words

inflammatory:

Relating to inflammation or swelling.

pathogen:

An organism that causes disease.

contagious:

Capable of being transmitted from one individual to another.

Slang Meanings of infection

Meaning: Bug

Example Sentence: I caught a bug that's going around.

Meaning: Germ

Example Sentence: Watch out for the germs at the school.