 quicksilver |
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| 1. | [ adjective ] liable to sudden unpredictable change | |
| Synonyms: | erratic mercurial fickle | |
| Examples: | "erratic behavior" "fickle weather" "mercurial twists of temperament" "a quicksilver character, cool and willful at one moment, utterly fragile the next" |
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| Related terms: | changeable | |
| 2. | [ noun ] (chemistry) a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures | |
| Synonyms: | mercury hydrargyrum atomic_number_80 Hg | |
| Related terms: | metallic_element calomel cinnabar | |
