arborisation

noun
  1. the process or result of branching in a tree-like pattern; the formation of branches or branch-like structures
  2. Usage: chiefly British spelling (American: arborization); used in biology, anatomy, and botany
  3. in anatomy, the branching pattern of nerves or blood vessels resembling the branches of a tree
  4. Usage: medical/anatomical term
  5. in botany, the natural development and arrangement of branches on a plant or tree
  6. Usage: botanical term

Examples