1. A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
   "Hydrargyrum is the scientific name for mercury";
   - quicksilver, hydrargyrum, Hg, atomic number 80
    
2. Temperature measured by a mercury thermometer
   "the mercury was falling rapidly"

1. (Roman mythology) messenger of Jupiter and god of commerce; counterpart of Greek Hermes
    
2. The smallest planet and the nearest to the sun

Derived forms: mercuries

Type of: inferior planet, metal, metallic element, Roman deity, temperature, terrestrial planet

Part of: calomel, cinnabar, mercurous chloride, solar system

Encyclopedia: Mercury, Savoie