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infectious
[in-fek-shuhs]
adjective
communicable by infection, as from one person to another or from one part of the body to another.
infectious diseases.
Synonyms: catchingcausing or communicating infection.
tending to spread from one to another.
infectious laughter.
Law., capable of contaminating with illegality; exposing to seizure or forfeiture.
Obsolete., diseased.
infectious
/ ɪnˈfɛkʃəs /
adjective
(of a disease) capable of being transmitted Compare contagious
(of a disease) caused by microorganisms, such as bacteria, viruses, or protozoa
causing or transmitting infection
tending or apt to spread, as from one person to another
infectious mirth
international law
tainting or capable of tainting with illegality
rendering liable to seizure or forfeiture
infectious
Capable of causing infection.
See Note at contagious
Other Word Forms
- infectiously adverb
- infectiousness noun
- noninfectious adjective
- noninfectiously adverb
- noninfectiousness noun
- uninfectious adjective
- uninfectiously adverb
- uninfectiousness noun
Word History and Origins
Origin of infectious1
Synonym Study
Example Sentences
His personality was infectious and the supporters warmed to him.
They added: "We are so proud of everything she achieved in her life and can't begin to imagine life without her infectious smile and laughter all around us."
“He was passionate about it, which came through in everything he did, and that passion was infectious, lifting up everyone around him.”
Fuel that infectious joy with the most twirl-worthy — and arguably most underrated — track of Swift’s career, “Sweeter Than Fiction.”
Bell has an infectious optimism, an endearing love of her craft and is impressively clear in what makes her tick.
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