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Cholesterol Definition Cholesterol is a main component of blood plasma and cell membranes, and it is an important precursor of many steroid hormones, vitamin D2,…

Elastic Fiber Definition Elastic fibers are generally 0.2-2 mcm in diameter but may be larger in some ligaments; they branch and anastomose to form networks…

Volume of a Cube A cube is a three-dimensional shape that has equal width, height, and length measurements. A cube has six square faces, all…

Cartilage Definition Cartilage is one of the types of connective tissue in our body. It consists of cells called chondrocytes mixed with collagen and sometimes…

Review about HTC U11 Introduction This year’s (2017) HTC U11 is a much more dramatic departure from past flagships like the HTC 10, switching brushed…

Nitrogen Dioxide Definition Nitrogen Dioxide (NO2) is a red-brown poisonous irritating gas that, at ordinary temperatures, exists in equilibrium with dinitrogen tetroxide. It is an…

Hypochlorous Acid Definition Hypochlorous Acid (HCIO) is a weak, unstable acid occurring only in solution and used as a bleach, oxidizer, deodorant, and disinfectant. It…

Fuel Cell Definition Fuel cell is like a battery in that it generates electricity from an electrochemical reaction. Both batteries and fuel cells convert chemical…

Power Supply Definition Power supply is a source of electricity for a device, which converts, regulates, and transmits the external power for the device. Typically,…

Notochord Definition Notochord is a primitive beginning to the backbone. The word notochord comes from the Greek words notos (back) and chorde (cord). It appears…

Ligament Definition Ligament is a sheet or band of tough fibrous tissue that connects two bones or holds an organ of the body in place.…

Sodium Hypochlorite Definition Sodium Hypochlorite (NaOCl·5H2O) is an unstable salt that is usually stored in solution and used as a fungicide and oxidizing bleach. It…