from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To contaminate with a pathogenic microorganism or agent.
- transitive v. To communicate a pathogen or disease to.
- transitive v. To invade and produce infection in.
- transitive v. To contaminate or corrupt: envy that infected their thoughts; a society that was infected by racism.
- transitive v. To affect in a contagious way: "His fear infected me, and . . . I followed as fast as I could” ( W.H. Hudson).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to bring into contact with a substance that can cause illness (a pathogen)
- v. to make somebody enthusiastic about one's own passion
from the GNU version of the Collaborative International Dictionary of English
- adj. Infected. Cf. enfect.
- transitive v. To taint with morbid matter or any pestilential or noxious substance or effluvium by which disease is produced
- transitive v. To affect with infectious disease; to communicate infection to.
- transitive v. To communicate to or affect with, as qualities or emotions, esp. bad qualities; to corrupt; to contaminate; to taint by the communication of anything noxious or pernicious.
- transitive v. To contaminate with illegality or to expose to penalty.
from The Century Dictionary and Cyclopedia
- To affect as with something infused or instilled; imbue; impregnate; permeate: used especially of that which is bad or hurtful, but sometimes also of that which is good or indifferent.
- Specifically To taint with disease or the seeds of disease, either physical or moral: as, to infect a person with smallpox; literature infected with immorality.
- In law, to taint or contaminate with illegality, or expose to penalty, seizure, or forfeiture.
- Synonyms To poison, pollute, defile.
- Infected; tainted; affected unfavorably.
- Contaminated with illegality; having a flaw in the title.
- Marred; discolored; darkened.
- In philology, to affect the quality of a sound in a following or preceding syllable: used especially in reference to the influence of prominent vowels, and phonetic changes, in the Celtic language.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. affect in a contagious way
- v. communicate a disease to
- v. corrupt with ideas or an ideology
- v. contaminate with a disease or microorganism
Middle English infecten, to afflict with disease, from Latin īnficere, īnfect-, to stain, infect (in-, in; see in-2 + facere, to do; see dhē- in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin infectus, perfect passive participle of inficiō ("dye, taint"). (Wiktionary)