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There are 12 seven-letter words containing NIUM

CONIUMSconiums n. Plural of conium.
CONIUM n. (Latin) a genus of biennial, poisonous, white-flowered, umbelliferous plants, bearing ribbed fruit and decompound leaves.
CRANIUMcranium n. (Anatomy) That part of the skull consisting of the bones enclosing the brain, but not including the…
cranium n. (Anthropology, informal) The upper portion of the skull, including the neurocranium and facial bones…
cranium n. (Informal) Synonym of skull.
DUBNIUMdubnium n. A transuranic chemical element (symbol Db) with atomic number 105.
dubnium n. (Chemistry, obsolete) A rejected name for rutherfordium.
DUBNIUM n. an element produced by bombarding plutonium with high energy neon ions.
HAFNIUMhafnium n. A chemical element (symbol Hf) with an atomic number of 72: a lustrous, silvery-grey tetravalent transition metal.
HAFNIUM n. a metallic element.
HAHNIUMhahnium n. (Chemistry, obsolete) A rejected name for dubnium.
hahnium n. (Chemistry, obsolete) A rejected name for hassium.
HAHNIUM n. an artificially produced transuranic element.
IONIUMSIONIUM n. a radioactive isotope of thorium.
MINIUMSminiums n. Plural of minium.
MINIUM n. (Latin) a red pigment.
MUONIUMmuonium n. (Physics, chemistry) An exotic atom formed when a positively charged muon (an anti-muon) and an electron…
MUONIUM n. an electron and a positive muon bound together.
OMNIUMSomniums n. Plural of omnium.
OMNIUM n. (Latin) the aggregate value of the different stocks in which a loan to government is now usually funded.
OXONIUMoxonium n. (Inorganic chemistry) Any univalent oxygen cation derived from water, the simplest of which is the hydronium…
OXONIUM n. a certain grouping of oxygen and hydrogen atoms.
RHENIUMrhenium n. A metallic chemical element (symbol Re) with an atomic number of 75: a heavy, silvery-gray transition metal.
rhenium n. (Countable) A single atom of this element.
RHENIUM n. a metallic element.
URANIUMuranium n. The element with atomic number 92 and symbol U: a radioactive silvery-grey metal in the actinide series.
URANIUM n. a radioactive element, also URANIDE.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 26 words
  • Scrabble in French: 8 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: 4 words
  • Scrabble in Romanian: no word


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