disinfectant

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disinfectant agent that destroys disease-causing microorganisms and their spores. Disinfectants, or germicides, are sometimes considered to be substances applied to inanimate bodies, whereas antiseptics , not so potent, are agents that kill microbes on living things. Mercuric chloride, carbolic acid (phenol), and chlorinated lime and other chlorine releasing compounds are disinfectants used on contaminated objects. Formaldehyde and some other disinfectants suitable for use in sprays are also used as deodorants and as airborne disinfectants, or fumigants, in large enclosed spaces. Certain substances such as mercury toluene sulfonanilide are used for disinfecting seeds to protect against soilborne plant diseases. Some disinfectants, especially chlorine and chlorine compounds, are also used as preservatives for leather and other materials. In weaker solutions some disinfecting chemicals may be used on the skin. Disinfection of contaminated objects can also be accomplished by boiling, where appropriate.

disinfectant Any substance that kills or inhibits the growth of disease-producing microorganisms and is in general toxic to human tissues. Disinfectants include cresol, bleaching powder, and phenol. They are used to cleanse surgical apparatus, sick-rooms, and household drains and if sufficiently diluted can be used as antiseptics.

disinfection (dis-in-fek-shŏn) n. the process of eliminating infective microorganisms from contaminated instruments, skin, clothing, or surroundings by the use of physical means or chemicals (disinfectants).

disinfectant (dis-in-fek-tănt) n. an agent that destroys or removes bacteria and other microorganisms. In medicine disinfectants (e.g. triclosan) are used to cleanse unbroken skin.

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