Looking for a word for "flattening a tree"

Question

I'm wondering if there's an existing word to describe a process that I'm currently using. I want to call it "flattening a tree" but I feel like there must be a better word or phrase.

input:

  |--D
--B
| |--C
|
A-E
|
| |--G
--F
  |--H

output:

[ [A, B, D]
  [A, B, C]
  [A, E]
  [A, F, G]
  [A, F, H] ]

Is there an established name for this process?

Answer 1

Path enumeration?

DFS traversal?

or my favourite

Tree arrayfication!

Answer 2

How about 'Hydrating' (or DeHydrating) depending on the situation ?