| 单词 | orchil |
| 释义 | orchil n. (also orchilla, archil) 1. a red or violet dye from lichen, esp. from Roccella tinctoria, often used in litmus. 2. the tropical lichen yielding this. Etymology: ME f. OF orcheil etc. perh. ult. f. L herba urceolaris a plant for polishing glass pitchers |
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