n.

1. 海螺；海神的響螺
2. 半圓形屋頂
3. 耳殼

n.

1. a tropical marine mollusc with a robust spiral shell which may bear long projections and have a flared lip. [Strombus and other genera: many species.]
2. Architecture  the roof of a semicircular apse.
3. another term for concha.