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8-letter words that end in ium

  • helenium — An American plant of the daisy family that bears many red to yellow flowers, each having a prominent central disk.
  • hymenium — the sporogenous layer in a fungus, composed of asci or basidia often interspersed with various sterile structures, as paraphyses.
  • illicium — (ichthyology) The modified dorsal fin on the head of anglerfish, acting as a lure.
  • illinium — promethium. Symbol: Il.
  • illuvium — the material accumulated through illuviation.
  • imperium — command; supreme power.
  • indicium — indicia (def 2).
  • indusium — Botany, Mycology. any of several structures having a netlike or skirtlike shape, as the membranous overgrowth covering the sori in ferns.
  • ingenium — genius; talent
  • lararium — (in an ancient Roman home) a shrine for the Lares.
  • lixivium — the solution, containing alkaline salts, obtained by leaching wood ashes with water; lye.
  • lutecium — a trivalent rare-earth element. Symbol: Lu; atomic weight: 174.97; atomic number: 71.
  • lutetium — a trivalent rare-earth element. Symbol: Lu; atomic weight: 174.97; atomic number: 71.
  • lygodium — (botany) Any of the genus Lygodium of climbing ferns.
  • masurium — technetium
  • meconium — the first fecal excretion of a newborn child, composed chiefly of bile, mucus, and epithelial cells.
  • motorium — the area of the brain or nervous system involved in movement
  • mycelium — the mass of hyphae that form the vegetative part of a fungus.
  • nebulium — a hypothetical element once thought to be present in emission nebulae because of certain unidentified spectral lines, now known to be forbidden transitions of oxygen and nitrogen ions.
  • nihonium — a highly radioactive element, of which only a few atoms have ever been produced. Symbol: Nh; atomic no: 113; atomic wt: 286
  • nobelium — a transuranic element in the actinium series. Symbol: No; atomic number: 102.
  • oncidium — any of numerous tropical American orchids of the genus Oncidium, having clusters of flowers showing great variety in size, form, and color.
  • onychium — a small fern plant of Old World tropics and subtropics
  • oogonium — one of the undifferentiated germ cells giving rise to oocytes.
  • opsonium — any food used as a relish, such as chutney
  • palatium — a palace, especially the palace of an ancient Roman emperor.
  • patagium — a wing membrane, as of a bat.
  • peculium — property that a father or master allowed his child or slave to hold as his own
  • peridium — the outer enveloping coat of the fruit body in many fungi.
  • phormium — any plant of the New Zealand bulbous genus Phormium, with leathery evergreen leaves and red or yellow flowers in panicles
  • podetium — (in certain lichens) a stalk bearing an apothecium.
  • polonium — a radioactive element discovered by Pierre and Marie Curie in 1898; Symbol: Po; atomic number: 84; atomic weight: about 210.
  • proprium — a nonessential property common to all the members of a class; attribute.
  • psyllium — fleawort.
  • puparium — a hard barrel-shaped case enclosing the pupae of the housefly and other dipterous insects
  • pygidium — any of various structures or regions at the caudal end of the body in certain invertebrates.
  • pyxidium — a seed vessel that opens transversely, the top part acting as a lid, as in the purslane.
  • ranarium — a place for keeping or rearing frogs
  • refugium — an area where special environmental circumstances have enabled a species or a community of species to survive after extinction in surrounding areas.
  • rosarium — a rose garden.
  • rubidium — a silver-white, metallic, active element resembling potassium, used in photoelectric cells and radio vacuum tubes. Symbol: Rb; atomic weight: 85.47; atomic number: 37; specific gravity: 1.53 at 20°C.
  • samarium — a rare-earth metallic element discovered in samarskite. Symbol: Sm; atomic weight: 150.35; atomic number: 62; specific gravity: 7.49.
  • scandium — a rare, trivalent, metallic element obtained from thortveitite. Symbol: Sc; atomic weight: 44.956; atomic number: 21; specific gravity: 3.0.
  • scholium — Often, scholia. an explanatory note or comment. an ancient annotation upon a passage in a Greek or Latin text.
  • scrinium — a cylindrical container used in ancient Rome to hold papyrus rolls.
  • selenium — a nonmetallic element chemically resembling sulfur and tellurium, occurring in several allotropic forms, as crystalline and amorphous, and having an electrical resistance that varies under the influence of light. Symbol: Se; atomic weight: 78.96; atomic number: 34; specific gravity: (gray) 4.80 at 25°C, (red) 4.50 at 25°C.
  • silicium — silicon.
  • silphium — an American flowering wild plant of the family Asteraceae
  • simulium — a blood-sucking, tropical fly of the genus Simulium
  • solarium — a glass-enclosed room, porch, or the like, exposed to the sun's rays, as at a seaside hotel or for convalescents in a hospital.
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