奧
陶
紀
奧
陶
紀
Definitions3 charactersOrdovician (geological 495-440m ago)
Usage•••frequent
Pronunciations
奧
陶
紀
As word
1Ordovician (geological period 495-440m years ago)
2Ordovician (geological period 495-440m years ago)
3Ordovician (geological period 495-440m years ago)
