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History of Nestle Nestlé is an international company with its headquarters in Vevey, Switzerland. In 1867 Henri Nestlé, a chemist from Frankfurt who had settled…

Carboxylic Acid Definition Carboxylic acid is an organic acid containing one or more carboxyl groups (C(=O)OH). The carboxyl (COOH) group is so-named because of the…

Pineal Gland Definition Pineal Gland is a small gland located near the brain and primarily involved in the production and secretion of the hormone melatonin,…

Nasal Cavity Definition Nasal cavity the cavity on either side of the nasal septum, extending from the nares to the pharynx, and lying between the…

Force Definition Force is a dynamic influence that changes a body from a state of rest to one of motion or changes its rate of…

Pheromone Definition Pheromone is a chemical secreted by an animal that influences the behavior or development of other members of the same species. Queen bees,…

Acetic Acid Definition Acetic Acid (CH3COOH) is a clear, colorless organic acid having a distinctive pungent odor. It is used as a solvent and in…

Solid figures Solid figures are three-dimensional figures that have length, width and height. Solid figures have a width, a depth, and a height. For example,…

About Vinegar Definition Vinegar is a sour-tasting liquid consisting of impure dilute acetic acid, made by oxidation of the ethyl alcohol in beer, wine, or…

Chemoreceptor Definition Chemoreceptor is a sensory nerve cell or sense organ, as of smell or taste that responds to chemical stimuli. It is usually refers…

Magnetometer Definition Magnetometer is an instrument for measuring the magnitude and direction of a magnetic field. Magnetometers are often used in archaeological and geological investigations…

Mammillary Body Defriniion Mammillary body is one of a pair of small round bodies, located on the undersurface of the human brain, at the ends…