PERIOSTRACUMS Periostracums (plural) refer to the organic outer layer of a mollusk shell, consisting of proteins and other substances.
Word: PERIOSTRACUMS
Length: 13 letters
Dictionary: Valid in TWL and SOWPODS
Status: Official Scrabble word
The word PERIOSTRACUMS can be used in various contexts. As a valid Scrabble word, it can be played on the Scrabble board according to standard game rules.