Definition of Infectious

1. Adjective. Caused by infection or capable of causing infection. "A carrier remains infective without himself showing signs of the disease"

Exact synonyms: Infective
Similar to: Infected, Septic
Derivative terms: Infection, Infect, Infect

2. Adjective. Easily spread. "Fear is exceedingly infectious; children catch it from their elders"

3. Adjective. Of or relating to infection. "Infectious disease"
Derivative terms: Infection, Infection
Partainyms: Infection

Definition of Infectious

1. a. Having qualities that may infect; communicable or caused by infection; pestilential; epidemic; as, an infectious fever; infectious clothing; infectious air; infectious vices.

Definition of Infectious

1. Adjective. (pathology of an illness) Transmitted from one person to another, usually through the air breathed. ¹

2. Adjective. (pathology of a person) Able to infect others. ¹

3. Adjective. (context: of feelings and behaviour) Spreading quickly from one person to another. ¹

4. Adjective. (informal) Memorable and invoking excitement or interest. ¹

¹ Source:

Definition of Infectious

1. [adj]

Medical Definition of Infectious

1. 1. Capable of being transmitted by infection, with or without actual contact. Synonym: infective. 3. Denoting a disease due to the action of a microorganism. (05 Mar 2000)

Infectious Pictures

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Lexicographical Neighbors of Infectious

infection-exhaustion psychosis
infection calculus
infection control
infection control nurse
infection control practitioners
infection immunity
infection thread
infectious (current term)
infectious agent
infectious anaemia
infectious arteritis virus of horses
infectious avian bronchitis
infectious bovine keratitis
infectious bovine keratoconjunctivitis
infectious bovine rhinotracheitis
infectious bovine rhinotracheitis virus
infectious bronchitis virus
infectious bulbar paralysis
infectious bursal disease
infectious bursal disease virus
infectious canine hepatitis
infectious conjunctivitis

Literary usage of Infectious

Below you will find example usage of this term as found in modern and/or classical literature:

1. Presidential Advisory Committee on Gulf War Veterans' Illnesses: Final Report edited by Joyce C Laslof, Marguerite Knox, John D Baldeschwieler (1997)
"Endemic infectious Diseases During WWII, British military units were stationed in the Gulf region and based on this experience documented the nature of ..."

2. A History of the Boston City Hospital from Its Foundation Until 1904 by Isabel Adams (Hampton) Robb, Boston City Hospital, David Williams Cheever, George Washington Gay, Amos Lawrence Mason, John Bapst Blake (1906)
"HISTORY OF THE SOUTH DEPARTMENT, BOSTON CITY HOSPITAL, infectious SERVICE. ... years in the establishment of special hospitals for infectious diseases. ..."

3. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1907)
"Bakl., orig., 1906, xxxxi, 796) has investigated the nasal flora in healthy persons, exposed and unexposed to infectious disease, and in persons suffering ..."

4. Monographic Medicine by William Robie Patten Emerson, Guido Guerrini, William Brown, Wendell Christopher Phillips, John Whitridge Williams, John Appleton Swett, Hans Günther, Mario Mariotti, Hugh Grant Rowell (1916)
"of an infectious origin for many of the chronic arthropathies has gained credence ... At the present time, the term "infectious arthritis" is used in a very ..."

5. The Medical Clinics of North America by Michael C. Fiore, Stephen S. Entman, Charles B. Rush (1922)
"The advantage of treating any infectious disease in the incipient stage is well ... I wish today to emphasize the infectious nature of chronic arthritis. ..."

6. The Popular Science Monthly (1880)
"Having transplanted active infectious organisms from one substance to another ... The degree of heat required to destroy the germs of infectious diseases is ..."

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