Definitions for "Infect"
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.
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.
To contaminate with illegality or to expose to penalty.
Keywords:  enfect
Infected. Cf. Enfect.
To affect with infectious disease; to communicate infection to; as, infected with the plague.
affect in a contagious way; "His laughter infects everyone who is in the same room"
Of a parasite: To begin or continue an interactive, usually pathogenic, relationship with the host. ( 21)
To become established in a parasitic relationship with a host plant.
Keywords:  unclean, impure, adding, materials
to make impure by adding unclean materials
communicate a disease to; "Your children have infected you with this head cold"