semi·dome \ˈ ̷ ̷(ˌ) ̷ ̷+ˌ-\noun Etymology:semi- + dome : a roof or ceiling covering a semicircular or nearly semicircular room or recess and being approximately the quarter of a hollow sphere — compare cul-de-four • semi·domed\| ̷ ̷(ˌ) ̷ ̷+\adjective