Science

Proterozoic Definition Proterozoic is the later of the two divisions of the Precambrian Eon, from about 2.5 billion to 540 million years ago. The Proterozoic…

Grouping Symbols include parentheses (), curly brackets {}, or square brackets []. Grouping symbols are used to clarify which operations to do first, especially if…

Purkinje Cell Definition Purkinje cell is a large, densely branching neuron in the cerebellar cortex of the brain. These cells were first discovered in 1837…

Komatiite Definition Komatiite is relatively common in Archean greenstone belts, rare in Proterozoic belts, and virtually absent in younger regions. The type area is the…

Glycolysis Definition Glycolysis is the process in cell metabolism by which carbohydrates and sugars, especially glucose, are broken down, producing ATP and pyruvic acid. It…

Putnisite Definition The mineral, named putnisite, appears purple and translucent, and contains strontium, calcium, chromium, sulphur, carbon, oxygen and hydrogen, a very unusual combination. It…

About Cerebellum Definition Cerebellum is the part of the vertebrate brain that is located below the cerebrum at the rear of the skull and that…

The term unary defines operators in binary algebra, trinary algebra, arithmetic, and set theory. Sometimes a unary operation is called a monadic operation or a…

Tourmaline Definition Tourmaline is Any of several minerals having the general chemical formula (Na,Ca)(Mg,Fe,Al,Li)3 Al6 (BO3)3 Si6 O18 (OH)4 . Tourmaline occurs in many different…

Medulla Oblongata Definition Medulla oblongata is the lowermost portion of the brainstem in humans and other mammals. It is important in the reflex control of…

Pyruvic Acid Definition Pyruvic acid is a colorless organic liquid formed by the breakdown of carbohydrates and sugars during cell metabolism. Its Chemical formula: C3H4O3.…

Spodumene Definition Spodumene is a greyish-white, green, or lilac pyroxene mineral consisting of lithium aluminium silicate in monoclinic crystalline form. It’s formula: LiAlSi 2O6. It…