“Contamination connotes a condition of impurity resulting from mixture or contact with a foreign substance. It is the state of being contaminated; an impurity; that which contaminates; to make inferio [..]

The act or process of contaminating; pollution; defilement; taint; also, that which contaminates. (linguistics) A process whereby words with related meanings come to have similar sounds. (lingui [..]

n. ~ 1. The condition of having undesirable, foreign material added in. - 2. The process of adding unwanted material. Notes:  Most often refers to the introduction of chemicals or other physical mater [..]

An impairment of the quality or tainting of the potable water supply.

Unwanted pollution of working surfaces, devices, rooms, water, air, etc. by radioactive substances. (See also ' decontamination')

early 15c., from Latin contaminationem (nominative contaminatio), noun of action from past participle stem of contaminare (see contaminate). Figurative sense is from c. 1620; specifically of radioacti [..]

Undesirable radiological, chemical, or biological material (with a potentially harmful effect) that is either airborne, or deposited in (or on the surface of) structures, objects, soil, water, or living organisms in a concentration that makes the medium unfit for its next intended use.

the state of being contaminated contaminant: a substance that contaminates the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors (conta [..]

1.  The introduction of data of one security [classification or] security category into data of a lower security classification or different security category. [2382-pt.8] [INFOSEC-99]. 2. Relative to numbering guidelines and FCC regulations, contamination occurs when at least one telephone number within a thousands-block of telephone numbers is no [..]

The deposit of radioactive material on the surface of structures, areas, objects, or personnel, following a nuclear explosion. This material generally consists of weapon debris becoming incorporated w [..]

noun. 1. the analysis and trial and error processes of allowing information, anticipations, or other elements concerning a variable under examination to impact the gathering and perception of informat [..]

contamination (pop)

The condition of having unwanted, foreign material added in, often as a result of direct contact. Although the term generally refers to the introduction of physical or biological impurities in the cas [..]

1) Radioactive deposition of radioactive material in any place where it is not desired, and particularly in any place where its presence may be harmful. The harm may be in vitiating the validity of an [..]

Cell culture term meaning to introduce micro-organisms to sterile articles, materials, cells or tissues. Lab - Tissue Culture 1

Un-contained radioactive material which has been dispersed into unwanted locations.

Loose skin contamination is that which is removable by bathing or decontamination. (Source: Background information on FEM-REP-22: Contamination Monitoring Guidance for Portable Instruments Used for Ra [..]

the deposition of unwanted radioactive material on the surfaces of structures, areas, objects, or people where it may be external or internal. [Animations of Contamination] See also decontamination, i [..]

Fixed skin contamination is that which remains after bathing or attempted decontamination. Contamination is assumed to be removed by natural processes within 336 hours (14 days) after deposition on th [..]

Radioactive material deposited or dispersed in materials or places where it is not wanted.

Usually an undesirable situation where radioactive material in an Unsealed Source (open source) state is present in the working environment, or otherwise un-contained and not required. Contamination c [..]

Undesired radioactive material that is deposited on the surface of or inside structures, areas, objects, or people.

Process by which harmful or unpleasant substances (such as metal or plastic material, strong odours, bacteria or poisons) get into or onto food.

The unintended presence of potentially harmful substances, including microorganisms in food.

(n) the state of being contaminated(n) a substance that contaminates(n) the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors

Often used as a synonymous for dirt or polution. In a precise definition contamination designates the presence of an extrinsic material on a surface or within a substance which has hazardous effects either regarding health or enviroment or function of a material or a process, depending on the context. A field of particular importance is the contami [..]

Includes any reduction in chemical or biological quality of water due to a change in temperature or the introduction of polluting substances. Interpretation given in Schedule 2: of the Water Supply (W [..]

Any material foreign to a hydraulic fluid that has a harmful effect on its performance in a system. Contaminants may be solid particles, liquids or gases.

Undesired substances on surfaces of parts and materials

Deposition of any radioactive material in any place where it is not desired, particularly where it may be harmful.

a general term signifying the introduction into water of microorganisms, chemicals, wastes or sewage which renders the water unfit for its intended use.

Water is considered contaminated if it contains chemical or biological pollutants that are harmful to human health or the environment.

Introduction into water, air, and soil of microorganisms, chemicals, toxic substances, wastes, or wastewater in a concentration that makes the medium unfit for its next intended use. Also applies to s [..]

Introduction into water, air, and soil of microorganisms, chemicals, toxic substances, wastes, or wastewater in a concentration that makes the medium unfit for its next intended use. Also applies to s [..]

Introduction into water, air, and soil of microorganisms, chemicals, toxic substances, wastes, or wastewater in a concentration that makes the medium unfit for its next intended use. Also applies t [..]

Any hazardous or regulated substance released into the environment.

Introduction into water, air and soil of micro-organisms, chemicals, toxic substances, wastes or wastewater in a concentration that makes the medium unfit for its next intended use. Also applies to su [..]

traces of chemicals that are present where they don't belong.

The presence of DNA from a source foreign to the sample being analysed.

The presence of organisms, or any foreign material that makes a Drug Preparation impure.

The presence of an infectious agent on instruments, prostheses, or other inanimate articles.

The presence in Food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage.

A contamination can occur when classified information is found on a computer or information system that is not accredited for classified information. Contamination of a computer can also occur when ma [..]

the act of dirtying or soiling; the state of being dirty or soiled, especially by microbes (germs) that cause disease

The presence of pollutants or other unwanted materials in water.

Any objectionable matter found in food or a food environment.

Impurity or pollution.

The introduction or occurrence of a contaminant in food.

The unintended presence of potentially harmful substances, including microorganisms in food.

The introduction into water of microorganisms, chemicals, toxic substances, wastes, or wastewater in a concentration that makes the water unfit for its next intended use.

The introduction of contaminants into a substance.

For food businesses contamination is the exposure of food to conditions that introduce foreign matter, disease causing microorganisms, and/or toxins.

The addition of something that makes water, for example, impure or unsuitable for a particular use.

Food is contaminated if it contains something which should not be there, e.g. a stone, chemicals or bacteria.

The addition of an undesirable and potentially harmful material; pollution.

The presence of an infectious agent on hands or on a surface such as clothes, gowns, gloves, bedding, toys, surgical instruments, patient care equipment, dressings or other inanimate objects.

The occurance of any objectionable matter in food or the food environment

Food is contaminated if it contains something which should not be there, e.g. a stone, chemicals or bacteria. Core temperature:

The addition of foreign matter to a substance which reduces the value of the substance or interferes with its intended use.

The unwanted transfer of material from another source to a piece of physical evidence. The inadvertent touching of a weapon, thereby adding fingerprints to it is an example of evidence contamination.

Type of incident involving the introduction of data of one security classification or security category into data of a lower security classification or different security category.

The presence of microbial growth and/or spores, which represents a shift in fungal ecology, and whose identity, location and amplification is not reflective of a normal microbial ecology for an indoor [..]

the introduction into water of sewage or other foreign matter that will render the water unfit for its intended use.

Many types of contamination pose risks to survey accuracy. The people included in the sample might not represent the sampling universe. The order of questions might contaminate answers to later questi [..]

Introduction into water, air, and soil of microorganisms, chemicals, toxic substances, wastes, or wastewater in a concentration that makes the medium unfit for its next intended use. Also applies to s [..]

Inadequate sorting of recyclable materials that interferes with the clean processing of recyclables. For example, a single ceramic coffee mug can cause a ten-ton load of glass bottles to be rejected by the end market; or contamination of office paper can occur if food, carbon paper, metal cans - essentially, any non-paper item - is added to the loa [..]

the state of being contaminated or impure (not pure) by contact or mixture; the state of having a substance introduced into the air, water, or soil that reduces its usefulness to humans and other organisms in nature.

Contamination is the presence of radioactive material where it is not wanted—most commonly by depositing on surfaces or inside structures, objects, or people.

The introduction of harmful or hazardous matter into the environment. 

the introduction into water of sewage or other foreign matter that will render the water unfit for its intended use. Return to Index D deionized water

The introduction to the water or foodstuffs of substances containing toxins or live pathogens which constitute a hazard to human health.

Radioactive particles that have accumulated on an exposed surface by contact with a radioactive material or waste. See What is radioactive waste? Controlled burial

The introduction into soil, air or water of a chemical, organic or radioactive material or live organism that will adversely affect the medium's quality.

The introduction into water of microorganisms, chemicals, toxic materials, waste water in a concentration that makes the water unfit for its next intended use.

Pollution by unwanted or damaging material, often bacterial, chemical or radioactive.

The presence of potentially damaging chemicals in the environment, but at concentrations less than those required to cause toxicity or other ecological damages. Compare with pollution.

Contamination is the presence of a constituent, impurity, or some other undesirable element that spoils, corrupts, infects, makes unfit, or makes inferior a material, physical body, natural environmen [..]

Contamination (a.k.a. Alien Contamination, Toxic Spawn or Larvae) is a 1980 science fiction-horror film directed by Luigi Cozzi and starring Ian McCulloch. The film is about an alien cyclops creature [..]

Contamination is a 1996 album by Belgian electro-industrial act Suicide Commando.

Contamination is the presence of an unwanted constituent in another substance. Contamination may also refer to: