Science

Definition Barium is a soft, silvery-white metallic element of the alkaline-earth group. It occurs only in combination with other elements, especially in barite. It is…

Adipose Tissue Definition Adipose tissue is a connective tissue consisting chiefly of fat cells surrounded by reticular fibers and arranged in lobular groups or along…

Strontium Definition Strontium is a soft, silvery metallic element of the alkaline-earth group that occurs naturally only as a sulfate or carbonate. It is the…

Rubidium Definition Rubidium is a soft, silvery-white metallic element of the alkali group. It ignites spontaneously in air and reacts violently with water. It is…

Reticular Connective Tissue Definition Reticular connective tissue is a type of tissue found in the body that is supported with a branching framework of collagen…

About Lithium Definition Lithium is a soft, silvery metallic element of the alkali group that occurs in small amounts in some minerals. It is the…

Supplementary Angles Two angles are supplementary if the sum of their angles equals 1800. A common case is when they lie on the same side…

Sodium Perchlorate Definition Sodium perchlorate is a white crystalline, hygroscopic solid that is highly soluble in water and in alcohol. It usually comes as the…

Loose Connective Tissue Definition Loose connective tissue is a loose, irregularly arranged connective tissue that consists of collagenous and elastic fibers, a protein polysaccharide ground…

Definitions of Sin, Cosine and Tangent A right triangle consists of one angle of 90° and two acute angles. Each acute angle of a right…

Perchloric Acid Definition Perchloric acid is a clear, colorless liquid that is very corrosive and, under some conditions, extremely explosive. It is a powerful oxidant…

Tendon Definition Tendon is a band of tough, fibrous, inelastic tissue that connects a muscle to a bone. Tendons are made chiefly of collagen. Ligaments…