- (v.t.) To communicate to or affect with, as qualities or emotions, especially bad qualities; to corrupt; to contaminate; to taint by the communication of anything noxious or pernicious.
- (v.t.) To affect with infectious disease; to communicate infection to; as, infected with the plague.
- (v.t.) To taint with morbid matter or any pestilential or noxious substance or effluvium by which disease is produced; as, to infect a lancet; to infect an apartment.
- (v.t.) To contaminate with illegality or to expose to penalty.
- (v.t.) Infected. Cf. Enfect.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). infect. Retrieved September 21, 2026, from http://smartdefine.org/infect/definitions/2021333 |
| Chicago | Webster's. 2011. "infect" http://smartdefine.org/infect/definitions/2021333 (accessed September 21, 2026). |
| Harvard | Webster's 2011, infect, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/infect/definitions/2021333>. |
| MLA | Webster's. "infect" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/infect/definitions/2021333> |