mercury

/ˈmɜrkyri/; /ˈmɜrkjuri/

Definitions

1. noun

The planet closest to the sun, a silvery-white, metallic chemical element (symbol Hg), and the messenger god in Roman mythology.

“The astronauts landed on the surface of Mercury, a scorching hot planet, after a long journey.”

2. noun

A quicksilver or metallic substance, especially the liquid metal obtained from cinnabar, used in barometers, thermometers, and other instruments.

“The thermometer contained mercury, which expanded when heated to indicate the temperature.”

3. noun

A chemical element with the symbol Hg and atomic number 80, a heavy, silvery-white, odorless, tasteless, and very ductile metal that is liquid at ordinary temperatures and pressure.

“Mercury is a toxic metal that can cause harm when ingested in large quantities.”

4. verb

To cause (a liquid) to flow or move as a result of its own weight, especially of a liquid metal.

“The mercury in the thermometer began to flow downward as the temperature dropped.”

5. verb

To cause a liquid to flow or move as a result of its own weight, especially of a liquid metal, so as to measure or indicate something, such as temperature or pressure.

“The barometer mercury flowed down the tube to indicate the low atmospheric pressure.”

6. adjective

Relating to or resembling quicksilver.

“The mercury-like substance flowed smoothly across the surface.”

7. adjective

Capable of flowing or moving easily and smoothly, like quicksilver.

“The mercury-like liquid poured effortlessly from the container.”

Synonyms

  • hasty
  • quicksilver
  • swift

Antonyms

  • slow
  • sluggish