The name 白素贞 is formed by combining three individual characters: 白 (bái), meaning "white", which references her origin as a white snake; 素 (sù), meaning "plain" or "white", reinforcing the color and purity theme; and 贞 (zhēn), meaning "virtuous" or "chaste", denoting her moral character. Together, these characters are concatenated to create a compound name where each element contributes descriptively to the identity and attributes of the mythological figure.