资料来源 : pyDict

半圆形屋顶

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Semidome \Sem"i*dome`\, n. (Arch.)
   A roof or ceiling covering a semicircular room or recess, or
   one of nearly that shape, as the apse of a church, a niche,
   or the like. It is approximately the quarter of a hollow
   sphere.