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Tellurium Definition Tellurium is a metalloid element that occurs as either a brittle, shiny, silvery-white crystal or a gray or brown powder. It is far…

Cardiac Muscle Definition Cardiac muscle is responsible for pumping blood throughout the body. It is a type of muscle tissue that is found only in…

Identifying Types of Triangles by Angles The triangle is perhaps most common shape ever studied in geometry. It is a kind of polygon which has…

Polonium Definition Polonium is a radioactive metallic element, occurring naturally in small quantities as a product of radium disintegration and produced synthetically by bombarding bismuth…

Heart Atrium Definition Atrium (Heart) is a chamber of the heart that receives blood from the veins and forces it by muscular contraction into a…

About Citric Acid Definition Citric acid is a white, odorless acid that has a sour taste and occurs widely in plants, especially in citrus fruit,…

Bismuth Definition Bismuth is a brittle, pinkish-white, crystalline metallic element that occurs in nature as a free metal and in various ores. Bismuth is the…

About Anxiety Definition Anxiety is a state of apprehension and fear resulting from the anticipation of a threatening event or situation. It’s the sense of…

Scalene Muscles Definition Scalene muscles are a group of muscles consisting of the scalenus anterior, scalenus medius, and scalenus posterior. These muscles are located toward…

Identifying Types of Triangles by Sides The triangle is perhaps most common shape ever studied in geometry. It is a kind of polygon which has…

Cadmium Definition Cadmium is a rare, soft, bluish-white metallic element that occurs mainly in zinc, copper, and lead ores. Its atomic number 48; atomic weight…

About Stress Definition Stress is is primarily a physical response. It is extremely difficult to define because it is so different for each individual, something…