Science

About Rosacea Definition Rosacea is a chronic dermatitis of the face, especially of the nose and cheeks, characterized by a red or rosy coloration with…

Epidote Definition Epidote is a yellowish-green or blackish-green monoclinic mineral. Epidote occurs as formless grains or as prism-shaped crystals, and is found in limestones that…

Additive inverse of a Number The Additive Inverse Axiom states that every real number has a unique additive inverse. Zero is its own additive inverse.…

Potassium Hydroxide Defnition Potassium hydroxide is a noncombustible, hydrophilic substance and therefore is highly corrosive to metal and tissue. It readily absorbs moisture from the…

Lawsonite Definition Lawsonite is an uncommon mineral that occurs at high pressures and low temperatures in regionally metamorphosed, low-grade, glaucophane-bearing schists. It can also form…

Hot Flash Definition Hot flash is a feeling of warmth, sometimes associated with flushing that spreads over the body and sometimes followed by perspiration. It…

Calcium Chloride Definition Calcium chloride is a white crystalline salt that attracts water very strongly. It is used in refrigeration and is spread on roads…

Hemimorphite Definition Hemimorphite is a white mineral consisting of hydrated zinc silicate in orthorhombic crystalline form: a common ore of zinc. It is also called…

Hygroscopy Definition Hygroscopy: It is relating to a compound that easily absorbs moisture from the atmosphere. When water vapor is absorbed the water molecules are…

Panic Attack Definition Panic attack is the sudden onset of intense apprehension, fear, terror, impending doom, depersonalization, and derealization, occurring in phobias, schizophrenia, and major…

Polycarbonate Definition Polycarbonate is a synthetic thermoplastic resin, a linear polymer of carbonic acid, used for molded products, films, and nonbreakable windows. The main advantage…

Mullite Definition Mullite is a colourless mineral consisting of aluminium silicate in orthorhombic crystalline form: used as a refractory. It can form two stoichiometric forms…