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Clinohumite Definition Clinohumite is a monoclinic-prismatic mineral containing fluorine, hydrogen, iron, magnesium, oxygen, and silicon. It is an uncommon member of the humite group, a…

Hydrolysis Definition Hydrolysis is the breaking down of a chemical compound into two or more simpler compounds by reacting with water. The proteins, fats, and…

Addition Equations To solve an equation means to find a value for the variable that makes the equation true. Whatever you do to one side…

Jerrygibbsite Definition Jerrygibbsite is a rare silicate mineral with chemical formula: (Mn,Zn)9(SiO4)4(OH)2. It is member of the leucophoenite family of the humite group. It is…

Cofactor Definition Cofactor in biochemistry is a substance, such as a metallic ion or a coenzyme that must be associated with an enzyme for the…

Aldehyde Oxidase Definition Aldehyde oxidase (AO) is a molybdenum-containing oxidoreductase that is similar to xanthine oxidase, also a molybdoenzyme. It catalyzes the oxidation of aldehydes…

T-Cell Receptor Definition T-cell receptor (TCR) is one of two polypeptide chains (a or ß) on the surface of T lymphocytes that recognize and bind…

Chondrodite Definition Chondrodite is one of the rarest and most beautiful of gemstones and it is occasionally faceted for collectors. It is a nesosilicate mineral…

Cytotoxic T Cell Definition Cytotoxic T cell is a type of immune cell that can kill certain cells, including foreign cells, cancer cells, and cells…

Four Basic Operations of Mathematics: Addition, Subtraction, Multiplication and Division The practice section of this page contains addition, subtraction, multiplication and division problems. Refer to the…

About Passions Definition In philosophy, Passions is a central concept, which refers to the conception of subjectivity. For philosophers of freedom, passion is a “disease…

Natural Killer Cell Definition Natural killer cell is a cell that can react against and destroy another cell without prior sensitization to it. It is…