1. state of being infected; contamination by germs or disease; something which contaminates or infects, disease. infection\in*fec"tion\ , n. [cf. f. infection, l. infectio a dyeing.].
2. the act or process of infecting. there was a strict order against coming to those pits, and that was only to prevent infection.
3. that which infects, or causes the communicated disease; any effluvium, miasm, or pestilential matter by which an infectious disease is caused. and that which was still worse, they that did thus break out spread the infection further by their wandering about with the distemper upon them.
4. the state of being infected; contamination by morbific particles; the result of infecting influence; a prevailing disease; epidemic. the danger was really very great, the infection being so very violent in london.
5. that which taints or corrupts morally; as, the infection of vicious principles. it was her chance to light amidst the gross infections of those times.
6. (law) contamination by illegality, as in cases of contraband goods; implication.
7. sympathetic communication of like qualities or emotions; influence. through all her train the soft infection ran. mankind are gay or serious by infection. --rambler.
8. The act or process of infecting.
9. That which infects, or causes the communicated disease; any effluvium, miasm, or pestilential matter by which an infectious disease is caused.
10. The state of being infected; contamination by morbific particles; the result of infecting influence; a prevailing disease; epidemic.
11. That which taints or corrupts morally; as, the infection of vicious principles.
12. Contamination by illegality, as in cases of contraband goods; implication.
13. Sympathetic communication of like qualities or emotions; influence. illegality that taints or contaminates a ship or cargo rendering it liable to seizure moral corruption or contamination; "ambitious men are led astray by an infection that is almost unavoidable" an incident in which an infectious disease is transmitted the invasion of the body by pathogenic microorganisms and their multiplication which can lead to tissue damage and disease the alteration of a speech sound under the influence of a neighboring sound the pathological state resulting from the invasion of the body by pathogenic microorganisms.
14. An infection is a disease caused by germs or bacteria. Ear infections are common in pre-school children see also:
infect. Invasion of the body by various agents including bacteria, fungi (see:
fungus), protozoans, viruses, and worms and its reaction to them or their toxins. Infections are called subclinical until they perceptibly affect health, when they become infectious diseases. Infection can be local (e.g., an abscess), confined to one body system (e.g., pneumonia in the lungs), or generalized (e.g., septicemia). Infectious agents can enter the body by inhalation, ingestion, sexual transmission, passage to a fetus during pregnancy or birth, wound contamination, or animal or insect bites. The body responds with an attack on the invader by leukocytes, production of antibodies or antitoxins, and often a rise in temperature. The antibodies may result in short-term or lifelong immunity. Despite significant progress in preventing and treating infectious diseases, they remain a major cause of illness and death, particularly in regions of poor sanitation, poor nutrition, and crowding.