Online Google Dictionary

contaminant 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. a substance that contaminates
  2. Contamination is the presence of a minor and unwanted constituent (contaminant) in material, physical body, natural environment, at a workplace, etc.
  3. (Contaminants) Pollution is the introduction of contaminants into a natural environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. ...
  4. That which contaminates; an impurity; foreign matter
  5. (Contaminants) are substances that have an adverse effect on the air, water, or soil.
  6. (CONTAMINANTS) The general name for any microparticle or organism which reduces water clarity, quality or presents health hazards. Filtering, oxidising and sanitising are necessary to destroy the contaminants.
  7. (CONTAMINANTS) As you drive, or leave your car outside and uncovered, your car's paint collects dirt, grime, bird droppings, bug splats, water deposits, tar, oil and other substances.  These substances contaminate your paint, reducing its brilliance and smooth feel. ...
  8. (Contaminants) Any polish, wax, tree sap, tar, oil or the like that would damage the paint film or spoil the adhesion of a new paint film.
  9. (Contaminants) Both natural and artificial materials not typically found or found in unusually high concentrations which can be detrimental to the health of wild or farmed aquatic species
  10. (Contaminants) Constituents added to the water supply through use. [1]
  11. (Contaminants) Foreign materials such as dirt, dust or oil that can be detected in the cured powder film.
  12. (Contaminants) Taste and odor, rust and sediments, bacteria or parasites, lead and other metal products.
  13. (Contaminants) any unacceptable or unintended trace materials.
  14. (Contaminants) anything that makes something else impure or unclean through contact or mixture; may include natural (arsenic or radon) or man-made (polychlorinated biphenyls [PCBs]) elements.
  15. (Contaminants) are substances that, when added to something, make it impure. For example, chemicals can contaminate a pond.
  16. (Contaminants) biological or chemical substances or entities, not normally present in a system, capable of producing an adverse effect in a biological system, seriously injuring structure or function.
  17. (Contaminants) substances contained in in-use metal removal fluids that are not part of the original fluid formulation. These can include abrasive particles, tramp oils, cleaners, dirt, metal particles, dissolved metals, hard water salts, bacteria, fungi, and microbiological byproducts.
  18. A substance, liquid or solid, which is present in a break. Contaminants must be removed from a break before a repair can begin.
  19. Any physical, chemical, biological or radiological substance or matter that has an adverse effect on air, water or soil.
  20. Harmful substance deposited in the air or water or land.
  21. An impurity or foreign substance whose presence on an assembly could electrolytically, chemically, or galvanically corrode the system.
  22. Any foreign component in a substance, for example in water.
  23. In water, any substance other than hydrogen and oxygen. The U.S. Environmental Protection Agency has established guidelines for three different classes of contaminants.
  24. Any impurity or substance that pollutes another; an agent of contamination accidently or inadvertantly introduced into food, water, soil, or air, that may or may not be harmful or potentially poisonous.
  25. Any substance that when added to water (or another substance) makes it impure and unfit for consumption or an intended use.