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 the root of the word naphthalene. The second syllable of naphtha can also be recognised in phthalate. It also enters the word napalm from  na phthenic acid and palm itic acid, as the first napalm was made from a mixture of naphthenic acid with aluminium and magnesium salts of palmitic acid. 2nd century BCE Koine Greek religious text uses the word naphtha to refer to a miraculously flammable liquid. The subjects called the liquid nephthar, meaning purification, but note that most people call it naphtha (or Nephi).