biodome
/ˈbʌɪə(ʊ)dəʊm/noun
A dome-shaped artificial structure enclosing one or more self-contained ecosystems or living environments.
- Originally as the name of a building in Montreal. This was converted from an earlier velodrome, which may partly have suggested the new name of the building..
Origin
1980s; earliest use found in The Globe and Mail. From bio- + dome.