conglomeration

n. aggregate, cluster, mass, assortment

Conglomerate is the term used to describe a large company which consists of divisions of often seemingly unrelated businesses.
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Noun
1. a rounded spherical form
(synonym) conglobation
(hypernym) sphere
2. a sum total of many heterogenous things taken together
(synonym) aggregate, congeries
(hypernym) sum, summation, sum total
(member-meronym) plankton
(derivation) accumulate, cumulate, conglomerate, pile up, gather, amass
3. an occurrence combining miscellaneous things into a (more or less) rounded mass
(synonym) conglobation
(hypernym) combining, combine
(derivation) accumulate, cumulate, conglomerate, pile up, gather, amass

n. conglomeration

(n.)
The act or process of gathering into a mass; the state of being thus collected; collection; accumulation; that which is conglomerated; a mixed mass.