Science

Lens (Anatomy) Definition Lens is a transparent structure behind the iris of the eye that focuses light entering the eye on the retina. The lens…

Potash Definition Potash is any of several chemical compounds that contain potassium, especially potassium carbonate (K2CO3), which is a strongly alkaline material obtained from wood…

Copper Sulfide Definition Copper sulfide is a crystalline solid used as a semiconductor and in photo optic applications. It is the black, bluish black, or…

Blood Vessel Definition Blood vessel is an elastic tube or passage in the body through which blood circulates; an artery, a vein, or a capillary.…

Copper Definition Copper is a reddish-brown, ductile, malleable metallic element that is an excellent conductor of heat and electricity. It is the 29th element on…

About Fascia Definition Fascia is the body’s connective tissue, it is a head to toe, inside to out, all-encompassing and interwoven system of fibrous connective…

Somnolence Definition Somnolence occurs when a person has a strong desire for sleep. It is also a term that is used to describe excessive sleepiness…

About Silver Definition Silver is a soft, shiny, white metallic element that is found in many ores, especially together with copper, lead, and zinc. It…

Sodium Chloride Definition Sodium chloride is a colorless to white powder or crystalline solid with no odor and a characteristic salty taste. It is used…

Median Nerve Definition Median nerve is a nerve which runs through the wrist and into the hand. It provides sensation and some movement to the…

Ethylene Oxide Definition Ethylene oxide is a colorless, odorless, gaseous, toxic, ring compound, C2H4O, usually obtained by the oxidation of ethylene: used chiefly in the…

Calculating the Area of a Trapezoid A trapezoid is a quadrilateral (has 4 sides) and has only one pair of sides parallel. Area of a…