1.The act or process of infecting. "There was a strict order against coming to those pits, and that was only to prevent infection."
2.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."
3.The state of being infected; the condition of suffering from an infectious disease; 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."
4.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."
5.(Law) Contamination by illegality, as in cases of contraband goods; implication.
6.Sympathetic communication of like qualities or emotions; influence. "Through all her train the soft infection ran." "Mankind are gay or serious by infection."
7.A localized area of tissue which is inflamed by growth of microorganisms; as, he has an infection in his finger.