mercury

Noun

• temperature measured by a mercury thermometer
  • the mercury was falling rapidly
    

• the smallest planet and the nearest to the sun

• (Roman mythology) messenger of Jupiter and god of commerce; counterpart of Greek Hermes

• a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures

Related words

• Synonyms: 
  Mercury , quicksilver , hydrargyrum , Hg , atomic number 80