pollution

1. (now rare) The desecration of something holy or sacred; defilement, profanation.Examples: "Men who attend the Altar, and should most / Endevor Peace: thir strife pollution brings / Upon the Temple it self […]."; "[T]he most gallant knights that ever wielded sword wasted their lives away in a struggle to seize it and hold it sacred from infidel pollution."archaicuncountableusually

2. (now archaic) The ejaculation of semen outside of sexual intercourse, especially a nocturnal emission.Examples: "When occasioned by a voluntary act it is called, simply, Pollution or Masturbation (q.v.); when excited, during sleep, by lascivious dreams, it takes the name Noctur'nal pollution, Exoneiro'sis, Oneirog'mos, Oneirog'onos, Gonorrhœ'a dormien'tium, G. oneirog'onos, G. Vera, G. libidino'sa, Proflu'vium Sem'inis, Spermatorrhœ'a, Paronir'ia salax, Night pollution."; "According to Billuart and other theologians, pollution in sleep is not sin, unless voluntarily caused; if, however, it begins in sleep, and is completed in the half-waking state, with a sense of pleasure, it is a venial sin."archaicuncountableusually