agate
/ˈeɪgət/noun
mass noun
1- an ornamental stone consisting of a hard variety of chalcedony, typically banded in appearance玛瑙。
1.1
- count noun a coloured toy marble resembling a banded gemstone玛瑙纹玩具弹子。
词源
late 15th cent.: from French， via Latin from Greek akhatē.