grey speck
(US gray speck)
noun
(More fully grey speck disease) a disease of oats characterized by grey specks on the leaf-blades, caused by a deficiency of manganese.
Origin
Early 20th century.
| 单词 | grey speck |
| 释义 | grey speck(US gray speck) noun (More fully grey speck disease) a disease of oats characterized by grey specks on the leaf-blades, caused by a deficiency of manganese. Origin |
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