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Grey Matter Definition Grey matter is the greyish tissue of the brain and spinal cord, containing nerve cell bodies, dendrites, and bare (unmyelinated) axons Technical…

Nervous Tissue Definition Nervous tissue is a highly differentiated tissue composed of nerve cells, nerve fibers, dendrites, and neuroglia. It is composed of neurons, or…

Infrared Definition Infrared or Infrared radiation is the part of the electromagnetic spectrum with a longer wavelength than light but a shorter wavelength than radio…

Volume of a Pyramid The volume of a 3-dimensional solid is the amount of space it occupies.  Volume is measured in cubic units ( in3,…

Silver Chloride Definition Silver chloride is a white insoluble powder that darkens on exposure to light because of the production of metallic silver: used in…

Chloroform Definition Chloroform is a colorless, toxic, sweet-tasting liquid formed by combining methane with chlorine. It is used as a solvent and was once widely…

About Ultraviolet Radiation Definition Ultraviolet Radiation is absorbed by the ozone molecules in the upper atmosphere (stratosphere), but a potentially dangerous amount passes through the…

Cerebral Cortex Definition Cerebral Cortex is the layer of gray matter in vertebrates that covers the cerebral hemispheres and is composed of folds of neurons…

Acrylic Acid Definition Acrylic acid may be a colorless, corrosive liquid that readily forms polymers. It’s accustomed to make plastics, paints, synthetic rubbers, and textiles.…

Gyrus Definition Gyrus is a rounded ridge, as on the surfaces of the cerebral hemispheres. It is a convolution on the surface of a cerebral…

Ultraviolet Catastrophe Definition Ultraviolet Catastrophe refers to a paradox that emerged in scientists’ understanding of the way light is emitted by black bodies that exist…

Benzoic Acid Definition Benzoic acid is a white, crystalline acid used in preserving food, as a cosmetic, and in medicine. Benzoic acid consists of a…