Agglomerate

v. t.
  1. To wind or collect into a ball; hence, to gather into a mass or anything like a mass.

v. i.
  1. To collect in a mass.

a.
  1. Collected into a ball, heap, or mass.
  2. (Bot.) Collected into a rounded head of flowers.

n.
  1. A collection or mass.
  2. (Geol.) A mass of angular volcanic fragments united by heat; -- distinguished from conglomerate.