The Collaborative International Dictionary
Semispherical
Semispheric \Sem`i*spher"ic\, Semispherical \Sem`i*spher"ic*al\,
a.
Having the figure of a half sphere.
--Kirwan.
Wiktionary
semispherical
a. hemispherical, having the shape of a hemisphere
Usage examples of "semispherical".
Now, however, a broad staircase opened down to a large semispherical room.
All we were allowed to see was a raft supporting a kind of semispherical, metal hut which contained the bomb itself, and all we were told was that it was much like one of the more regular types of atomic bomb, but with a massive casing that would resist the pressure at five miles deep, if necessary.