is a type of color. Which has the appearance of mother-of-pearl. It has a silver color similar to a pearl. It has an iridescent white color, like mother-of-pearl.
1º_ As an adjective it means "covered or with the appearance of mother-of-pearl". 2º_ Participle of the verb nacarar . 3º_ In lunfardo it is a popular way to call the bandoneon (which was usually leveled in natural or synthetic mother-of-pearl).