Definition of Wallacea in English:

Wallacea

proper noun

Zoology
  • A zoogeographical area constituting a transition zone between the Oriental and Australian regions, east of Wallace's line. It is generally held to comprise Sulawesi and other islands between the two continental shelves.

Origin

1920s: from the name of A. R. Wallace(see Wallace, Alfred Russel).

Pronunciation:

Wallacea

/wɒˈleɪsɪə/