From the Latin for "to roll together", it's a corporation of several companies involved in a variety of businesses
[DOC] [TLE] Read Online - JStor [PAR] 'Derived from the Latin verb, conglomerare meaning "to roll together", it is a 
geological term ... 21 May 1969, Im - 'Conglomerates, or Large Diversified Firms; 
Merger Guide ... corporate mergers that has swept the business world in recent 
years.