What does magnēsium mean in Latin?

magnēsium, a noun, means “magnesium (chemical element 12)”.

What is the genitive of magnēsium?

The genitive singular is magnēsiī. magnēsium is neuter, second declension.

In classical Latin, [maŋˈneː.si.ũː]; in ecclesiastical (church) Latin, [maɲˈɲɛː.s̬i.um].

noun · neutersecond declension

magnēsium n (genitive magnēsiī)

Classical[maŋˈneː.si.ũː]Ecclesiastical[maɲˈɲɛː.s̬i.um]

New Latinmagnesium (chemical element 12)
Magnesium nitratum nullum converſionem expertum eſt a noſtri acidi admixtione.1782, D. Laurentius, Gulielmo Huntero, “Nova experimenta Chemica quae ad penitiorem Acidi e Pinguedine eruti cognitionem valere videntur”, in Philosophical Transactions of the Royal Society of London, Part I, page 28:

Substantivization of the neuter form of magnēsius (“of or pertaining to the region of Magnesia”).

Descendants