lithophanePronunciation: /ˈlɪθəfeɪn, ˈlʌɪ-/Definition of lithophane noun [mass noun] a kind of ornamentation of porcelain visible when held to the light, produced by pressing designs into it when soft. [count noun] an object with a lithophane decoration. Origin: 1940s: from Greek lithos 'stone' + -phanēs 'appearing'