Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Capable of causing infection.
- adj. Caused by or capable of being transmitted by infection.
- adj. Caused by a pathogenic microorganism or agent.
- adj. Easily or readily communicated: an infectious laugh.
Century Dictionary and Cyclopedia
- Communicable by infection; easily diffused or spread from person to person or from place to place, as a disease, a moral influence, or a mental condition: specifically applied to diseases which are capable of being communicated from one to another, or which pervade certain places, attacking persons there, independently of any contact with those already sick. Infectious diseases include contagious and miasmatic diseases.
- Capable of communicating infection; that infects, taints, or corrupts; contaminating: as, infectious clothing; infectious air; an infectious vice.
- In law, capable of contaminating with illegality; exposing to seizure or forfeiture.
- Synonyms Catching, communicable.
- Contaminating, poisoning, defiling.
Wiktionary
- adj. Transmitted from one person to another, usually through the air breathed.
- adj. Able to infect others.
- adj. Spreading quickly from one person to another.
- adj. Memorable and invoking excitement or interest.
GNU Webster's 1913
- adj. Having qualities that may infect; communicable or caused by infection; pestilential; epidemic.
- adj. Corrupting, or tending to corrupt or contaminate; vitiating; demoralizing.
- adj. Contaminating with illegality; exposing to seizure and forfeiture.
- adj. Capable of being easily diffused or spread; sympathetic; readily communicated.
WordNet 3.0
- adj. caused by infection or capable of causing infection
- adj. of or relating to infection
- adj. easily spread
Examples
“BLITZER: It brings new meaning to the term infectious enthusiasm.”
“Technically speaking, when you hear a veterinarian speaking of the condition, you will hear the term infectious tracheobronchitis.”
“This general result I shall only support by the authority of Dr. Ramsbotham, who gives, as the result of his experience, that the same symptoms belong to what he calls the infectious and the sporadic forms of the disease, and the opinion of Armstrong in his original Essay.”
“This general result I shall only support by the authority of Dr. Ramsbotham, who gives, as the result of his experience, that the same symptoms belong to what he calls the infectious and the sporadic forms of the disease, and the opinion of”
“Dr. Cahill, senior attending physician in infectious diseases and emergency medicine at St. Luke's-Roosevelt Hospital Center, serves as the orchestra's in-house physician, treating everything from violinists 'stiff necks to an epidemic of food poisoning that occurred while the orchestra was on tour several years ago.”
“I'll be fully engulfed in infectious disease before mid morning!”
“And its not being infectious is assuredly an important consideration.”
“Without a doubt, anyone who saw the movie Contagion would label infectious diseases a pressing public health crisis.”
The Huffington Post: Linda Rosenberg: A Silent Public Health Crisis
“Just like happiness and laughter are often described as infectious, it turns out you can catch loneliness too.”
“If you do not agree with messing around with the genes of food crops, then instead donate yor computing time to the search for antiviral drugs or to the search for understanding the proteins found in infectious diseases.”
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