Meaning & Definition of word "Infectious"

Infectious

/ɪnˈfɛkʃəs/

adjective:

  • 1. capable of causing infection; communicable.
    • Example: The doctor confirmed that the disease is infectious and can spread through close contact.
  • 2. likely to spread or influence others, especially in terms of emotions or attitudes.
    • Example: Her infectious laughter filled the room and made everyone feel at ease.
  • 3. producing or resulting from the presence of germs or pathogens.
    • Example: The infectious agents were found in the contaminated water supply.

Etymology

Derived from Latin 'infectiosus', from 'inficere' meaning 'to taint or infect'.

Common Phrases and Expressions

infectious laughter:

Laughter that spreads to others, causing them to laugh as well.

infectious enthusiasm:

A level of excitement that inspires or energizes those around you.

infectious disease:

A disease that can be transmitted from one individual to another.

Related Words

infection:

The state of being infected or poisoned by pathogens.

infect:

To contaminate or become contaminated with a disease-causing agent.

infective:

Capable of causing infection.

Slang Meanings of infectious

Meaning: Something that spreads quickly, often in a positive way.

Example Sentence: Her positive vibe is infectious!

Meaning: An enthusiastic trend or idea that people readily adopt.

Example Sentence: The new dance move is totally infectious; everyone is doing it.