Definition of "Yggdrasil"
Yggdrasil
/ˈɪɡdɹəsɪl/
proper noun
(Norse mythology) An immense ash tree that is central in Norse cosmology, believed to connect the nine worlds.
Quotations
In Norse mythology, for example, the World Tree, or Yggdrasil, connected the nine existences that straddled the worlds of gods and men with its mighty roots. Yggdrasil was reputedly a gigantic ash tree (and was the central feature of Norse cosmology), around the base of which the serpent Níôhöggr had twisted its body.
2007, Bob Curran, Ian Daniels, Walking with the Green Man: Father of the Forest, Spirit of Nature, page 66