The dystonias are movement disorders in which sustained muscle contractions cause twisting and repetitive movements or abnormal postures. The movements, which are involuntary and sometimes painful, may affect a single muscle; a group of muscles such as those in the arms, legs, or neck; or the entire body.
Definition of Data Clustering. Data Clustering is the classification of a data set into a group of numbers, where members of each group surround a particular number.efinition of Data Clustering. Data Clustering is the classification of a data set into a group of numbers, where members of each group surround a particular number.
Wiktionary(4.80 / 5 votes)Rate this definition: 1  cluster(Noun) A group or bunch of several discrete items that are close to each other. 2  cluster(Noun) A group of galaxies or stars that appear near each other. 3  cluster(Noun) A secundal chord of three or more notes. 4  cluster(Noun) A group of consonants.