Han blue (English, noun)
expansion: Han blue (uncountable)
Senses:
glosses: A pigment made from barium copper tetrasilicate (BaCuSi₄O₁₀), an artificial blue pigment, used by ancient Chinese for over 2 millennia before dying out at the end of the Han dynasty; one of the few alternates to azurite in ancient times.
tags: uncountable
Forms: