cumulation

from WordNet (r) 3.0 (2006)

cumulation
    n 1: a collection of objects laid on top of each other [syn:
         {pile}, {heap}, {mound}, {agglomerate}, {cumulation},
         {cumulus}]

from The Collaborative International Dictionary of English v.0.48

Cumulation \Cu`mu*la"tion\ (k?`m?-l?"sh?n), n. [Cf. F.
   cumulation.]
   The act of heaping together; a heap. See {Accumulation}.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

60 Moby Thesaurus words for "cumulation":
      abundance, accumulation, acervation, agglomerate, agglomeration,
      aggregate, aggregation, amassment, assembling, backlog,
      bringing together, budget, chunk, collection, colluvies,
      commissariat, commissary, congeries, conglobation, conglomerate,
      conglomeration, cornucopia, dump, gathering, gleaning, glomeration,
      gob, heap, hoard, hunk, inventory, larder, lump, mass, material,
      materials, materiel, munitions, pile, plenitude, plenty,
      provisionment, provisions, rations, repertoire, repertory, rick,
      snowball, stack, stock, stock-in-trade, stockpile, store, stores,
      supplies, supply on hand, treasure, treasury, trove, wad