mil
n.
1721, in per mil "per thousand," from Latin mille "thousand" (see million); compare percent. As a unit of length for diameter of wire, it is attested from 1891; as a unit of angular measure it is first recorded 1907.
| 词汇 | mil |
| 词根词缀 | Online Etymology Dictionary mil n. 1721, in per mil "per thousand," from Latin mille "thousand" (see million); compare percent. As a unit of length for diameter of wire, it is attested from 1891; as a unit of angular measure it is first recorded 1907. |
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