Science

Vitamin Deficiency Anemia Definition Vitamin deficiency anemia is a lack of healthy red blood cells caused when you have lower than normal amounts of certain…

Division Terms There are four terms which describe the four numbers in a division problem. The dividend is the number that is being divided. The…

Holmium Definition Holmium is a soft, silvery, malleable metallic element of the lanthanide series. Its compounds are highly magnetic. Its atomic number 67; atomic weight…

Converting Decimal Numbers to Scientific Notation When working with very large or very small numbers, scientists, mathematicians, and engineers often use scientific notation to express…

Lanthanum Definition Lanthanum is a soft, malleable, silvery-white metallic element of the lanthanide series. It is the eponym of the lanthanide series, a group of…

Morphine Definition Morphine is a highly addictive drug derived from opium and used to treat intractable pain, as in severe injury or metastatic cancer. It…

Yttrium Definition Yttrium is a silvery metallic element found in the same ores as elements of the lanthanide series. It is almost always found in…

Converting Percent to Fraction and Decimal When we talk, we often use different words to express the same thing. For example, we could describe the…

Palmitic Acid Definition Palmitic acid is a saturated fatty acid occurring as combustible white crystals in many natural oils (such as spermaceti and palm oil)…

Bastnäsite Definition Bastnäsite is a rare yellow to reddish-brown mineral consisting of a carbonate of fluorine and several lanthanide metals. It occurs in association with…

Catatonia Definition Catatonia is an abnormal condition often associated with schizophrenia and variously characterized by stupor, stereotypy, mania, and either rigidity or extreme flexibility of…

Plastid Definition Plastid is an organelle found in the cells of plants, green algae, red algae, and certain other protists. Like mitochondria, plastids have an…