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Definition of holmium : A rare element said to be contained in gadolinite.

Synonyms:

atomic number 67, Ho

europium, iridium, cobalt, zinc, neon, arsenic, carbon, argon, beryllium, silver, polonium, boron, promethium, platinum, antimony, radium, americium, chlorine, sulfur, mendelevium, tellurium, cadmium, erbium, copper, technetium, praseodymium, magnesium, cesium, fermium, germanium, nickel, oxygen, lithium, thallium, palladium, mercury, californium, rhodium, xenon, berkelium, curium, thulium, ruthenium, lutetium, gallium, nitrogen, manganese, molybdenum, krypton, uranium, phosphorus, tin, bromine, terbium, cerium, lanthanum, niobium, hydrogen, scandium, potassium, rubidium, thorium, helium, osmium, strontium, indium, iodine, neptunium, gold, hafnium, vanadium, sodium, bismuth, neodymium, rhenium, ytterbium, einsteinium, gadolinium, calcium, nobelium, plutonium, titanium, dysprosium, lead, francium, iron, chromium, selenium, aluminum, yttrium, tungsten, silicon, astatine, actinium, tantalum, fluorine, barium, radon, zirconium, samarium, element, protactinium