Science

Locus is a curve or other figure formed by all the points satisfying a particular equation of the relation between coordinates, or by a point,…

Papilledema Definition Papilledema is the swelling of the optic disc caused by increased intracranial pressure. The optic nerve head, also called the optic disk or…

Achávalite is a selenide mineral that is a member of the nickeline group. It has only been found in a single Argentinian mine system, being…

Sphalerite Definition Sphalerite is a usually yellow-brown or brownish-black cubic mineral occurring either as single dodecahedral crystals or as granular masses. It is also called…

Acanthite is a form of silver sulfide with the chemical formula Ag2S. It is one of the most important ores of silver. It crystallizes in…

Corpus Callosum Definition Corpus callosum is the transverse band of nerve fibers that connects the right and left cerebral hemispheres. It is also called callosal…

Evaluating Exponents of Positive and Negative Numbers Exponents can be attached to variables as well as numbers. When they are, the basic rules of exponents…

Dolomite Definition Dolomite is a gray, pink, or white rhombohedral mineral. Dolomite occurs in curved saddlelike crystals with a pearly to glassy luster. It is…

Evaluate Squares and Cubes Evaluate Squares An exponent is a number that tells how many times the base number is used as a factor. For…

Spina Bifida Definition Spina bifida is a congenital defect caused by incomplete formation of the neural tube, in which the vertebral column is not fully…

Equally Inclined Lines By the meaning of equally inclined lines, we mean that the lines which make equal angles with both the co-ordinate axes. The…

Marcasite Definition Marcasite is a light yellow to gray, metallic, orthorhombic mineral. Its chemical formula: FeS2 and sometimes called white iron pyrite. Marcasite is a…