| 单词 | plasma |
| 释义 | Word Frequency plasma(ˈplæzmə) or plasm noun 1. the clear yellowish fluid portion of blood or lymph in which the red blood cells, white blood cells, and platelets are suspended 2. short for blood plasma 3. a former name for protoplasm, cytoplasm 4. physics a. a hot ionized material consisting of nuclei and electrons. It is sometimes regarded as a fourth state of matter and is the material present in the sun, most stars, and fusion reactors b. the ionized gas in an electric discharge or spark, containing positive ions and electrons and a small number of negative ions together with un-ionized material 5. a green slightly translucent variety of chalcedony, used as a gemstone 6. a less common term for whey Derived forms plasmatic (plæzˈmætɪk) or plasmic (ˈplasmic) adjective Word origin C18: from Late Latin: something moulded, from Greek, from plassein to mould |
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