Definition of gadolinium in English:



mass noun
  • The chemical element of atomic number 64, a soft silvery-white metal of the lanthanide series.

    • ‘For undergraduate chemistry it was required that one could recite the whole thing from memory, to know that iridium lies at the foot of cobalt, that europium is sandwiched between samarium and gadolinium.’
    • ‘In contrast, the prolonged increase in cytosolic calcium was greatly enhanced in the presence of gadolinium or lanthanum chloride.’
    • ‘It has been known since the late 1970s that paramagnetic metal ions such as gadolinium improve the MRI signal, but the toxicity of these uncomplexed metal ions has limited their use.’
    • ‘This is a major improvement over gadolinium, a metal that has been used as a contrast agent for 20 years.’
    • ‘However, both germination and elongation are significantly inhibited by the inclusion of calcium channels blockers, including lanthanum, gadolinium, or verapamil.’


Late 19th century: from gadolinite.