porphyry shell
Noun
Meaning
porphyry shell (plural porphyry shells)
The shell of a particular marine gastropod known as the tent olive (Oliva porphyria), having a dark red or brown polished surface, marked with light spots, like porphyry.
Noun
porphyry shell (plural porphyry shells)
The shell of a particular marine gastropod known as the tent olive (Oliva porphyria), having a dark red or brown polished surface, marked with light spots, like porphyry.