12-letter words that end in nium
- aldebaranium — (chemistry, obsolete) A rejected name for ytterbium.
- androclinium — clinandrium.
- bimillennium — a period of two thousand years
- cuprammonium — an ion of copper oxide used (in solution) in the manufacture of rayon and other man-made fibres
- ivy geranium — a trailing geranium, Pelargonium peltatum, of southern Africa, having a fleshy stem that becomes woody with age, glossy, ivy-shaped leaves, and clusters of flowers ranging from white to deep rose in color.
- panhellenium — an institution founded by the Roman Emperor Hadrian idealizing Greece's Classical history
- periselenium — the closest point of the orbit of a spacecraft to the moon
- postliminium — postliminy.
- protactinium — a radioactive, metallic element. Symbol: Pa; atomic number: 91.
- quadriennium — quadrennium.
- quadrominium — a building consisting of four individually owned apartments or living units.
- quinquennium — a period of five years.
- spermagonium — Botany, Mycology. spermogonium.
- spermogonium — one of the cup-shaped or flask-shaped receptacles in which the spermatia of certain fungi and red algae are produced.
- telharmonium — a musical keyboard instrument operating by alternating currents of electricity which, on impulse from the keyboard, produce music at a distant point via telephone lines.
- transuranium — any element having an atomic number greater than 92, the atomic number of uranium. All such elements are radioactive and can be synthesized by bombarding a heavy element with a light particle or element. See also transactinide element.
On this page, we collect all 12-letter words ending in NIUM. It’s easy to find right word with a certain length. It is the easiest way to find 12-letter word that ends in NIUM to use in Scrabble or Crossword puzzles.