also: きんこ
noun
gold dust; gold powder
Fine particles of gold, used in crafts, decoration, or as a material.
職人が漆器に金粉をまいた。
The artisan sprinkled gold dust onto the lacquerware.
金粉を使った絵の具は高価だ。
Paint made with gold powder is expensive.
Compound of 金 (gold) and 粉 (powder). The reading きんぷん is the standard Sino-Japanese reading; きんこ is a rare alternative reading.