Web sites are found by their addresses on the World Wide Web. These addresses are known as URLs, or Uniform Resource Locators. Every website has a URL assigned to it, so both searchers and Web servers can find them quickly and easily.
Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense or another) to each other than to those in other groups (clusters).
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.