1) Amalgam 2) Cento 3) Congeries 4) Conglobation 5) Glomeration 1) April event 2) Cluster 3) Conglobation 4) Mixed, coherent mass 5) Sphere 6) The act of conglomerating 
[convention] ConGlomeration is an annual multigenre convention held in or around Louisville, Kentucky. ConGlomeration is an all-volunteer non-profit organization which, as part of its convention programming, conducts charitable fundraising activities on behalf of the American Cancer Society. With the unexpected closure of the convention`s h...
• (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.
Con·glom`er·a'tion noun [ Latin conglomeratio : confer French conglomeration .] The act or process of gathering into a mass; the state of being thus collected; collection; accumulation; that which is conglomerated; a mixed mass. Bacon. 
[n] - a rounded spherical form 2. [n] - an occurrence combining miscellaneous things into a (more or less) rounded mass
conglomeration 1. A rounded spherical form. 2. A sum total of many heterogenous things taken together. 3. An occurrence combining miscellaneous things into a (more or less) rounded mass.
conglobation noun an occurrence combining miscellaneous things into a (more or less) rounded mass
the act of conglomerating; the state of being conglomerated. · a cohering mass; cluster. · a heterogeneous combination: a conglomeration of ideas.
[The Glass Menagery] combining miscellaneous things into a rounded mass a sum total of many heterogeneous things taken together