mother-of-pearl /ˌmʌðəɹ əv ˈpɜː(ɹ)l/noun 3adjective 1forms 2 noun3 •The hard pearly inner layer of certain mollusk shells; nacre. •A butterfly of the genus Salamis. •A butterfly of the species Patania ruralis. adjective1 •Made from or looking like mother-of-pearl; iridescent or pearly. formsmother of pearls · mother-of-pearls
