a fragrance made up of the operculum of a veined rapa whelk

the operculum of a shell; often that belong to a veined rapa whelk / a fragrance made up of such a ground up operculum

an aquatic shellfish (generally limited to mollusks with calcareous shells such as clams or snails, and excluding crustaceans such as shrimp or crabs)

beautiful

(archaic) beautiful

extraordinary, unusual

emergency

very; extremely / exceedingly; tremendously

carapace, shell / first in rank / instep or the back of the hand / the first party

Babylonia japonica: the Japanese babylon or Japanese ivory shell