Mercury

/mˈɜːkjʊɹi/

/ˈmɝkjɝi/

Mercury

the 1st and the smallest planet of the solar system

a heavy silver-colored and poisonous metal that has a liquid state in the ordinary temperature

temperature measured by a mercury thermometer

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

Examples

1. In the past, people sometimes attributed eccentric behavior to being as mad as a hatter, unaware of the toxic effects of mercury exposure.

2. My answer is Mercury. -

3. Number one is mercury.

4. Mercury retrogrades three times a year.