Science

Thulium Definition Thulium is a soft, silver-gray metallic element of the lanthanide series with symbol Tm. Its Atomic number 69; atomic weight 168.934; melting point…

Feet and inches are US customary system units, so let’s look at information that is as close to official as it can be, material from…

Three quantities are said to be in continued proportion if the ratio of the first term and second term be equal to the ratio of…

Osteosarcoma Definition Osteosarcoma is a cancerous tumor that grows in a bone, and sometimes it can start in the bone and move to other parts…

Azelaic Acid Definition Azelaic acid is a naturally occurring acid, which is an organic compound with the formula HOOC(CH2)7COOH. It is found in wheat, rye,…

Dividing by Repeated Subtractions The result of division is to separate a group of objects into several equal smaller groups. The starting group is called…

Samarium Definition Samarium is a silvery-white metallic element of the lanthanide series that exists in several forms and has seven naturally occurring isotopes. Its atomic…

Ratios are used to compare values. In mathematics, a ratio is a relationship between two numbers indicating how many times the first number contains the…

Migraine Definition Migraine is a severe recurring headache, usually affecting only one side of the head that is characterized by sharp, throbbing pain and is…

Division of Decimals by Decimals The procedure for the division of decimals is very similar to the division of whole numbers. Make the divisor into…

Lutetium Definition Lutetium is a silvery-white metallic element of the lanthanide series that is used in nuclear technology. It is the last element in the…

Oleic Acid Definition Oleic acid is an organic acid that is prepared from fats and is used in the preparation of oleates and lotions. It…