gold acupuncture needle
Specifically a needle made of gold, used in acupuncture. The term is technical and primarily encountered in medical or traditional medicine contexts.
Gold needles are more expensive than silver ones, but are said to have higher thermal conductivity.
Silver acupuncture needle, often contrasted with 金針 in traditional medicine discussions.
Standard kanji spelling for a gold acupuncture needle.
Alternate kanji using 鍼 (acupuncture needle); less common than 金針.
Compound of 金 (きん, 'gold') and 針 (しん, 'needle'), literally 'gold needle'. The reading しん for 針 is the on'yomi, common in medical compounds.