blue ash
noun
The ash tree Fraxinus quadrangulata, which is chiefly native to the Midwestern United States, and of which the inner bark has been used as a blue dye.
Origin
Late 18th century.
| 单词 | blue ash |
| 释义 | blue ashnoun The ash tree Fraxinus quadrangulata, which is chiefly native to the Midwestern United States, and of which the inner bark has been used as a blue dye. Origin |
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