A dwarf is a person of short stature - under 4' 10 as an adult. More than 200 different conditions can cause dwarfism. A single type, called achondroplasia, causes about 70 percent of all dwarfism. Achondroplasia is a genetic condition that affects about 1 in 15,000 to 1 in 40,000 people. It makes your arms and legs short in comparison to your head and trunk.
Definition of NAPHTHALENE. : a crystalline aromatic hydrocarbon C10H8 usually obtained by distillation of coal tar and used especially in organic synthesis.See naphthalene defined for kids. a crystalline aromatic hydrocarbon C10H8 usually obtained by distillation of coal tar and used especially in organic synthesis. See naphthalene defined for kids.
Naphtha is a term used to describe a class of hydrocarbon. mixtures obtained from the distillation of Petroleum or Coal-. Tar. Naphtha can be reddish-brown (Coal-Tar) or colorless. to pale yellow (Petroleum) with a gasoline-like odor. Naphtha is used as a solvent, in making varnish, adhesives,