semidome

noun

semi·​dome ˈse-mē-ˌdōm 

ˈse-ˌmī-,

-mi-

: a roof or ceiling covering a semicircular or nearly semicircular room or recess

semidomed

ˈse-mē-ˌdōmd 

ˈse-ˌmī-

-mi-

adjective

Word History

First Known Use

1788, in the meaning defined above