The adjective form of "mercury" is "mercurial."
Mercurial and mercury
Having the qualities fabled to belong to the god Mercury; swift; active; sprightly; fickle; volatile; changeable; as, a mercurial youth; a mercurial temperament., Having the form or image of Mercury; -- applied to ancient guideposts., Of or pertaining to Mercury as the god of trade; hence, money-making; crafty., Of or pertaining to, or containing, mercury; as, mercurial preparations, barometer. See Mercury, 2., Caused by the use of mercury; as, mercurial sore mouth., A person having mercurial qualities., A preparation containing mercury.
Mercury. One Mercurial day is 176 Terran (Earth) days.
"Mercurial magic in motion." "Riding the silvery current of mercury." "Dancing with liquid silver." "The quicksilver allure of mercury."
I think it means relating to Mercury (Hermes) who is the God of Thievery.
Mercury was one of the Roman Gods. He was the messanger god.
Mercurial is a Middle English word that had its origins between 1350 and 1400. Its Latin root is the mercuriālis which refers to someone or something pertaining to the God, Mercury. Common synonyms of mercurial include changeable, erratic, fickle and flighty.
A mercurial sphygmomanometer is a medical device used to measure blood pressure, utilizing mercury as the manometric fluid. It consists of a vertical glass column filled with mercury, where the height of the mercury column indicates the pressure in millimeters of mercury (mmHg). This type of sphygmomanometer is known for its accuracy but has become less common due to concerns about mercury toxicity and environmental impact. Alternatives, such as aneroid and digital sphygmomanometers, are now more widely used.
From Anglo-Norman / Old French mercurial, and their source, Latin mercurialis, from Mercurius ("Mercury"), the name of the Roman messenger God who was said to "fly as fleet to do Jupiter's bidding." .
A mercurial barometer measures atmospheric pressure by using a column of mercury in a glass tube. As air pressure changes, the level of mercury in the tube rises or falls, indicating the current atmospheric pressure. This information is used to provide weather forecasts and monitor changes in barometric pressure.
The term mercurial refers to the Roman god Mercury. He was the patron god of profit, commerce, communication, travelers, thieves, luck and trickery, as well as the guide of souls to the underworld.