Definition of masurium in US English:

masurium

noun

Chemistry
historical
  • The element of atomic number 43 (later named technetium), which was first claimed to have been discovered by X-ray spectroscopy in certain heavy metal ores.

Origin

1920s; earliest use found in The Glasgow Herald. From German Masurium from Masuren Masuria + -ium.

Pronunciation

masurium

/məˈz(j)ʊərɪəm/