Blood loss during and after birth may cause a woman to become iron-deficient, which may result in anemia or hair loss. Menstruation. Excessively heavy periods (menorrhagia) can cause iron deficiency in women, especially when combined with other factors, such as inadequate iron intake.
Plastic is a material consisting of any of a wide range of synthetic or semi-synthetic organics that are malleable and can be molded into solid objects of diverse shapes.Plastics are typically organic polymers of high molecular mass, but they often contain other substances.nplasticised polystyrene is a rigid, brittle, inexpensive plastic that has been used to make plastic model kits and similar knick-knacks. It also is the basis for some of the most popular foamed plastics, under the name styrene foam or Styrofoam.
polymer-Computer Definition. (1) Meaning many parts, it is a material constructed of smaller molecules of the same substance that form larger molecules. For example, plastic is a synthetic polymer, while protein is a natural polymer.See polymer semiconductor.plural polymers). ( 1 organic chemistry) A long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar small molecules called monomers. 2  A polymer is formed by polymerization, the joining of many monomer molecules.