In·fect, v. t. [imp. & p. p. Infected; p. pr. & vb. n. Infecting.]
1. 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.
2. To affect with infectious disease; to communicate infection to; as, infected with the plague.
Them that were left alive being infected with this disease. --Sir T. North.
3. 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.
Infected Ston's daughters with like heat. --Milton.
4. Law To contaminate with illegality or to expose to penalty.
Syn: -- To poison; vitiate; pollute; defile.