Definitions
from The Century Dictionary.
- Investing the shell of a mollusk, as an epidermis; of or pertaining to periostracum.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of or pertaining to
periostracum .
Etymologies
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Examples
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Clear differences can be seen in the number of whorls and location of periostracal hairs in the embryos, though.
Mysterious snails of the Potomac AYDIN 2007
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