burgeoning

Short definition from Wiktionary

Verb

1. 1
   present participle and gerund of burgeon

Noun

1. 1
   The act of budding or sprouting.
2. 2
   A bud or branch.
3. 3
   A new growth or expansion of something.

Adjective

1. 1
   That buds, grows or expands; developing.