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.
This Public Health Statement is the summary chapter from the Toxicological Profile for Naphthalene, 1-Methylnaphthalene, and 2-Methylnaphthalene. It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQsTM, is also available.his public health statement tells you about naphthalene, 1 methylnaphthalene, and 2 methylnaphthalene and the effects of exposure to these chemicals. The Environmental Protection Agency (EPA) identifies the most serious hazardous waste sites in the nation.