noun. ['ˈklʌstɝɪŋ'] a grouping of a number of similar things.
1. Verb, gerund or present participle Turn off your light if you simply have moths clustering around a light bulb or lamp near you. 2. Noun, singular or mass Moles refer to the occurrence of the clustering of skin cells.
1. We seem to inhabit a universe made up of a small number of elements-particles-bits that swirl in chaotic clouds, occasionally clustering together in geometrically logical temporary configurations. - Timothy Leary, Chaos & Cyber Culture