from the GNU version of the Collaborative International Dictionary of English
- n. Any species of Pleurotomaria, a genus of beautiful, pearly, spiral gastropod shells having a deep slit in the outer lip. Many fossil species are known, and a few living ones are found in deep water in tropical seas.
from The Century Dictionary and Cyclopedia
- n. A shell of the family Pleurotomariidæ, having the outer lip slit. See cut under Pleurotomaria.
Sorry, no etymologies found.