mer·cu·ry 
/ˈmɚkjəri/ noun
/ˈmɚkjəri/ noun 1 [noncount] a : a silver metal that is liquid at normal temperatures
b : the mercury in a thermometer that shows the air's temperature
▪ In the summer, the mercury can reach over 100 degrees Fahrenheit. ▪ By late afternoon, the mercury had dropped (to) below zero. 2 Mercury [singular] : the planet that is closest to the sun
b : the mercury in a thermometer that shows the air's temperature
▪ In the summer, the mercury can reach over 100 degrees Fahrenheit. ▪ By late afternoon, the mercury had dropped (to) below zero.
