Bacsonian
adjective
Bac·so·ni·an
(ˈ)bak¦sōnēən
: of or relating to a Neolithic culture of southeast Asia characterized by unpainted pottery and polished stone implements
Word History
Etymology
Bac-son, locality in Tonkin, northern Vietnam, where the remains were found + English -ian
First Known Use
1933, in the meaning defined above