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English Lexicon

Quicksilver

/ˈkwɪkˌsɪl.vər/
nounadjectiveCEFR C1 (Advanced)Top #9500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The liquid metallic element mercury.

    "Thermometers historically contained quicksilver to measure temperature changes accurately."
As adjective
  1. 1

    Spanning characteristics of being volatile, unpredictable, lively, or changing rapidly.

    "Her quicksilver moods shifted from deep melancholy to sudden boundless joy within minutes."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Originating from Old English 'cwicksylver', combining 'cwic' (living, lively) and 'seolfor' (silver), reflecting the metal's liquid, mobile state. Historically used as a common name for the chemical element mercury before adopting metaphorical connotations of volatility and speed.

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