Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80 on the periodic table. It is a heavy metal that is liquid under standard temperature and pressure. 

The remaining debris of the Caretaker's array contained mercury, hydrogen, helium, and argon. ()

Mercury was used in an instrument called a barometer to measure gaseous pressure. The atmospheric pressure of Taurus II measured 70 millimeters of mercury. ()

In 2374, when the  hologram got hold of a plasma injector conduit from the , he noted that it was capable of making mercury flow in three directions at once. ()

Additional references

See also 
 Inch of mercury
 Redskinium

Background information 
 The script of the  episode  describes the liquid latinum as having "the consistency of mercury."

External links
 
 
Elements