Water

Water

Water is a chemical compound with the chemical formula H20. A water molecule contains one hydrogen atom and two oxygen atoms. Water is a liquid at standard ambient temperature and pressure though it can be a solid (ice)in low temperatures or evaporate into water vapor a higher temperatures.

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Water

dna hybridization

Natural environment; Water

Use of a segment of DNA, called a DNA probe, to identify its complementary DNA; used to detect specific genes.

dosage/dose

Natural environment; Water

1. The actual quantity of a chemical administered to an organism or to which it is exposed. 2. The amount of a substance that reaches a specific tissue (e.g. the liver). 3. The amount of a substance ...

dose equivalent

Natural environment; Water

The product of the absorbed dose from ionizing radiation and such factors as account for biological differences due to the type of radiation and its distribution in the body in the body.

dose rate

Natural environment; Water

In exposure assessment, dose per time unit (e.g. mg/day), sometimes also called dosage.

dose response

Natural environment; Water

Shifts in toxicological responses of an individual (such as alterations in severity) or populations (such as alterations in incidence) that are related to changes in the dose of any given substance.

dose response curve

Natural environment; Water

Graphical representation of the relationship between the dose of a stressor and the biological response thereto.

dose-response assessment

Natural environment; Water

1. Estimating the potency of a chemical. 2. In exposure assessment, the process of determining the relationship between the dose of a stressor and a specific biological response. 3. Evaluating the ...