Art Technique of Emulsifying Paint With Egg Yolk
This page is the CodyCross answer for the clue below from Trip to Spain, Group 859, Puzzle 4 (Santiago De Compostela).
Question is: Art Technique of Emulsifying Paint With Egg Yolk
and the answer is: TEMPERA
Word Meaning:
TEMPERA — (uncountable) A paint in which the pigments are suspended in a water-soluble emulsion, such as of egg yolk or gelatine, which hardens and becomes insoluble on exposure to air.
Definitions from Wiktionary.