| 单词 | polar |
| 释义 | Word Frequency polar(ˈpəʊlə) adjective 1. situated at or near, coming from, or relating to either of the earth's poles or the area inside the Arctic or Antarctic Circles polar regions 2. having or relating to a pole or poles 3. pivotal or guiding in the manner of the Pole Star 4. directly opposite, as in tendency or character 5. chemistry a. Also: heteropolar (of a molecule or compound) being or having a molecule in which there is an uneven distribution of electrons and thus a permanent dipole moment water has polar molecules b. (of a crystal or substance) being or having a crystal that is bound by ionic bonds sodium chloride forms polar crystals |
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