tincture

名词 tincture:

1. a substances that colors metals
2. an indication that something has been present
   同义词：trace, vestige, shadow
3. a quality of a given color that differs slightly from a primary color
   同义词：shade, tint, tone
4. (pharmacology) a medicine consisting of an extract in an alcohol solution

动词 tincture:

1. fill, as with a certain quality
   同义词：impregnate, infuse, instill
2. stain or tint with a color

1. The book has a tincture of heresy.
   这本书稍有异端意味。
2. A tincture of iodine may be used medically.
   碘酒可以作为医药使用。