adjective
collected into a ball, heap, or mass
noun
A collection or mass.
(geology, volcanology) A mass of angular volcanic fragments united by heat; distinguished from conglomerate.
(meteorology) An ice cover of floe formed by the freezing together of various forms of ice.
verb
(ambitransitive) To wind or collect into a ball; hence, to gather into a mass or anything like a mass.
(geography) To extend an urban area by contiguous development, so as to merge the built-up area of one or more central cities or settlements and their suburbs (thus creating an agglomeration).