from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances.
- n. Something that pollutes; a pollutant or a group of pollutants: Pollution in the air reduced the visibility near the airport.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The act of polluting or the state of being polluted, especially the contamination of the environment by harmful substances.
- n. Something that pollutes; a pollutant.
- n. Physical defilement.
- n. The emission of semen at other times than in sexual intercourse.
from the GNU version of the Collaborative International Dictionary of English
- n. The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity.
- n. The emission of semen, or sperm, at other times than in sexual intercourse.
from The Century Dictionary and Cyclopedia
- n. The act of polluting; also, the state of being polluted; defilement; uncleanness; impurity.
- n. Specifically, legal or ceremonial uncleanness, disqualifying a person for sacred services or for intercourse with others, or rendering anything unfit for sacred use.
- n. The emission of semen at any other time than during coition: more frequently called self-pollution.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
- n. the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
- n. the state of being polluted
Recorded since c.1340, as "discharge of semen other than during sex," later, "desecration, defilement" (1382), from Late Latin pollutio "defilement," from Latin polluere "to soil, defile, contaminate", itself from por- "before" + -luere "to smear" (related to lutum "mud" and to lues "filth", compare Greek (lyma) "filth, dirt, disgrace" and (lymax) "rubbish, refuse," Old Irish loth "mud, dirt," Lithuanian lutynas "pool, puddle"). Sense of "contamination of the environment" first recorded c.1860 (Wiktionary)