Value of an estimator obtained as a result of an estimation. ISO 14698-2.
Estimation
Operation of assigning, from the observations in a sample, numerical values to the parameters of a distribution chosen as the statistical model for the population from which this sample is taken. ISO 14698-2.
Estimator
Statistic to estimate a population parameter.
ESTRI
Electronic Standards for the Transfer of Regulatory Information and Data
Estrogen
The generic term for a group of female sex hormones which control the development of sexual characteristics and control estrus.
Etalonnage (Calibration)
Etalonnage (Calibration)
Étalonnage (ISO 10012)
Étalonnage (ISO 10012)
Etching
The process of removing a layer of metal from its surface using a chemical and/or electrolytic process.
Etendue de mesure (Calibration range)
Etendue de mesure (Process range)
ETFE
Ethylene Tetrafluoroethylene (Tefzel®)
Ethanol (Ethyl Alcohol)
(C2H6O) Commonly used to disinfest plant tissues, glassware utensils and working surfaces in tissue culture manipulations. The concentration used is 70% (v/v) for disinfecting and 95% (v/v) when flaming tools. Ethanol is also used to dissolve water-insoluble additions (addendums) to culture media.
Ethical Investment
Investment philosophy which attempts to balance the regard for morality of a firm's activities and regard for return on investment. Ethical investors seek to invest (usually through mutual funds or unit trusts) in firms which make a positive contribution to the quality of environment and quality of life.
Ethical Pharmaceutical
A controlled substance for the diagnosis or treatment of disease.
Ethics
Conforming to an accepted standard of human behavior.
Ethnographic Research
Ethnography is the study of people and their culture. Ethnographic research, also called fieldwork, involves observation of and interaction with the persons or group being studied in the group's own environment, often for long periods of time.
Ethylene Oxide (ETO)
A toxic compound used in gaseous form as a sterilizing agent, usually as a 10% mixture with carbon dioxide or 12% mixture with freon (referred as 12-88). Sterilization using ETO leaves residual chemicals such as ethylene chlorohydrin and ethylene glycol.
Ethylene-Diamine Tetra-Acetic Acid (EDTA)
A chelating compound. In tissue culture it is used to keep nutrients, such as iron, bound in a form that leaves them still available to the plant but which prevents them from precipitating out.