单词 | periostracum |
释义 | periostracum[ per-ee-os-truh-kuhm ] / ˌpɛr iˈɒs trə kəm / noun, plural per·i·os·tra·ca [per-ee-os-truh-kuh]. /ˌpɛr iˈɒs trə kə/.the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids. Origin of periostracum1830–40; <New Latin, equivalent to peri-peri- + ostracum a shell <Greek óstrakon.See oyster OTHER WORDS FROM periostracumper·i·os·tra·cal, adjectiveWords nearby periostracumperiosteoplastic amputation, periosteosis, periosteotomy, periosteum, periostitis, periostracum, periotic, periovaritis, peripachymeningitis, peripancreatitis, peripatetic Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for periostracum
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