Source : Webster's Revised Unabridged Dictionary (1913)

Neanderthal \Ne*an"der*thal`\, a. (Anthropol.)
   Of, pertaining to, or named from, the Neanderthal, a valley
   in the Rhine Province, in which were found parts of a
   skeleton of an early type of man. The skull is characterized
   by extreme dolichocephaly, flat, retreating forehead, with
   closed frontal sutures, and enormous superciliary ridges. The
   cranial capacity is estimated at about 1,220 cubic
   centimeters, being about midway between that of the
   {Pithecanthropus} and modern man. Hence, designating the

Source : WordNet®

Neanderthal
     n : extinct robust human of Middle Paleolithic in Europe and
         western Asia [syn: {Neandertal man}, {Neanderthal man}, {Neandertal},
          {Homo sapiens neanderthalensis}]