Science

Antiseptic Definition Antiseptic is a substance that inhibits the proliferation of infectious agents. It is a product which eradicates or prevents the development of bacteria…

About Artery Definition Artery is any of the blood vessels that carry oxygenated blood away from the heart to the body’s cells, tissues, and organs.…

Sodium Bicarbonate Definition Sodium bicarbonate is a white crystalline compound used in beverages and as a leavening agent to make baked goods. In medicine, sodium…

Ceramic Definition Ceramic are any of various hard, brittle, heat- and corrosion-resistant materials made typically of metallic elements combined with oxygen or with carbon, nitrogen,…

Retina Definition Retina is the light-sensitive membrane that lines the inside of the back of the eyeball and connects to the brain by the optic…

Malachite Definition Malachite is a bright-green monoclinic mineral occurring as a mass of crystals (an aggregate) with smooth or botryoidal (grape-shaped) surfaces. It is often…

About Cornea Definition Cornea is the clear, dome­shaped surface that covers the front of the eye and it is the eye’s outermost layer. It lies…

Copper(II) Carbonate Definition Copper(II) carbonate is a compound, CuCO3, that was used as a sulfide scavenger for water-base muds. It was found to be corrosive…

Sodium Nitrate Definition Sodium nitrate is a poisonous, white, crystalline compound used in solid rocket propellants, in matches, as a fertilizer, and in curing meat.…

Potassium Nitrate Definition Potassium nitrate (KNO3) is a transparent, white, crystalline compound and strong oxidizing agent. It is used in gunpowder and fireworks, in making…

Calculating the Area of a Parallelogram The area of a parallelogram can be found by multiplying the base times the height. It means the number…

About Azurite Definition Azurite is a soft stone, named for its deep “azure blue” color. It is a copper carbonate mineral found in the upper…