| 单词 | pellicle |
| 释义 | Word Frequency pellicle(ˈpɛlɪkəl) noun 1. a thin skin or film 2. the hard protective outer layer of certain protozoans, such as those of the genus Paramecium 3. botany a. the thin outer layer of a mushroom cap b. a growth on the surface of a liquid culture 4. photography the thin layer of emulsion covering a plate, film, or paper Derived forms pellicular (pɛˈlɪkjʊlə) adjective Word origin C16: via French from Latin pellicula, from pellis skin |
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