noun the act or process of infecting.
2. infection ·noun sympathetic communication of like qualities or emotions; influence.
3. infection ·noun contamination by illegality, as in cases of contraband goods; implication.
4. infection ·noun that which taints or corrupts morally; as, the infection of vicious principles.
5. infection ·noun the state of being infected; contamination by morbific particles; the result of infecting influence; a prevailing disease; epidemic.
6. infection ·noun that which infects, or causes the communicated disease; any effluvium, miasm, or pestilential matter by which an infectious disease is caused.