POLLUTION
contamination, pollution
(noun) the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
befoulment, defilement, pollution
(noun) the state of being polluted
pollution
(noun) undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
Source: WordNet® 3.1
Etymology
Noun
pollution (countable and uncountable, plural pollutions)
(now, rare) The desecration of something holy or sacred; defilement, profanation. [from 14th c.]
(now, archaic) The ejaculation of semen outside of sexual intercourse, especially a nocturnal emission. [from 14th c.]
Moral or spiritual corruption; impurity, degradation, defilement. [from 15th c.]
Physical contamination, now especially the contamination of the environment by harmful substances, or by disruptive levels of noise, light etc. [from 18th c.]
Something that pollutes; a pollutant. [from 17th c.]
Synonyms
• soilage
• (masturbation): self-pollution
Antonyms
• conservation
• purity
Source: Wiktionary
Pol*lu"tion, n. Etym: [L. pollutio: cf. F. pollution.]
1. The act of polluting, or the state of being polluted (in any sense
of the verb); defilement; uncleanness; impurity.
2. (Med.)
Definition: The emission of semen, or sperm, at other times than in sexual
intercourse. Dunglison.
Source: Webster’s Unabridged Dictionary 1913 Edition