Definition of arborescence in US English:

arborescence

noun

Botany
  • See arborescent

    • ‘The independent evolution of arborescence in nearly all major groups of plants was key to the development of multistratal forests in some habitats at this time.’
    • ‘A directed graph is called an arborescence if, from a given node known as the root vertex, there is exactly one elementary path to every other node.’
    • ‘Borrichia arborescence and Vigna luteola were among the common plants found in tropical scrub habitats extending from the beach to the interior of the islands.’

Pronunciation

arborescence

/ˌɑrbəˈrɛsns//ˌärbəˈresns/