noun
agate
A type of banded chalcedony, often used in jewelry and ornamental objects.
この指輪にはめのうが使われています。
This ring uses agate.
めのうは色の縞模様が美しい石です。
Agate is a stone with beautiful colored bands.
The word めのう is derived from the Chinese term 瑪瑙 (mǎnǎo), which itself may have origins in a foreign language. The exact derivation is uncertain.