9-letter words containing ium
- pastorium — a Baptist parsonage.
- pentium 2 — Pentium II
- pentium 3 — Pentium III
- plutonium — a transuranic element with a fissile isotope of mass number 239 (plutonium 239) that can be produced from non-fissile uranium 238, as in a breeder reactor. Symbol: Pu; atomic number: 94.
- pollinium — an agglutinated mass or body of pollen grains, characteristic of plants of the orchid and milkweed families.
- pomoerium — the space around a town within the city walls
- potassium — a silvery-white metallic element that oxidizes rapidly in the air and whose compounds are used as fertilizer and in special hard glasses. Symbol: K; atomic weight: 39.102; atomic number: 19; specific gravity: 0.86 at 20°C.
- presidium — (in the Soviet Union and other Communist countries) an administrative committee, usually permanent and governmental, acting when its parent body is in recess but exercising full powers: the presidium of the Supreme Soviet.
- pterygium — an abnormal triangular mass of thickened conjunctiva extending over the cornea and interfering with vision.
- purdonium — a type of coal scuttle having a slanted cover that is raised to open it, and an inner removable metal container for the coal
- pycnidium — (in certain ascomycetes and fungi imperfecti) a globose or flask-shaped fruiting body bearing conidia on conidiophores.
- reptilium — a building for the public exhibition of reptiles.
- rhipidium — a fan-shaped arrangement of flowers on a plant
- rhizobium — any of several rod-shaped bacteria of the genus Rhizobium, found as symbiotic nitrogen fixers in nodules on the roots of the bean, clover, etc.
- ruthenium — a steel-gray, rare metallic element, belonging to the platinum group of metals. Symbol: Ru; atomic weight: 101.07; atomic number: 44; specific gravity: 12.2 at 20°C.
- sacrarium — Roman Catholic Church. a piscina.
- sensorium — a part of the brain or the brain itself regarded as the seat of sensation.
- septarium — a concretionary nodule or mass, usually of calcium carbonate or of argillaceous carbonate of iron, traversed within by a network of cracks filled with calcite and other minerals.
- sporidium — a small spore produced on the basidia or promycelia of fungi, etc
- strontium — a bivalent, metallic element whose compounds resemble those of calcium, found in nature only in the combined state, as in strontianite: used in fireworks, flares, and tracer bullets. Symbol: Sr; atomic weight: 87.62; atomic number: 38; specific gravity: 2.6.
- sulfonium — the positively charged group H 3 S + , its salts, or their substitute products.
- sympodium — an axis or stem that simulates a simple stem but is made up of the bases of a number of axes that arise successively as branches, one from another, as in the grapevine.
- symposium — a meeting or conference for the discussion of some subject, especially a meeting at which several speakers talk on or discuss a topic before an audience.
- synangium — a common vascular junction from which several arteries branch
- syncytium — a multinucleate mass of cytoplasm that is not separated into cells.
- tellurium — a rare, lustrous, brittle, crystalline, silver-white element resembling sulfur in its properties, and usually occurring in nature combined with gold, silver, or other metals of high atomic weight: used in the manufacture of alloys and as a coloring agent in glass and ceramics. Symbol: Te; atomic weight: 127.60; atomic number: 52; specific gravity: 6.24.
- tentorium — Anatomy. an extension of one of the membranes covering the cerebrum which, with the transverse fissure, separates the cerebrum from the cerebellum.
- terrarium — a vivarium for land animals (distinguished from aquarium).
- thalamium — thalamus (def 3).
- trapezium — Geometry. (in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram. a quadrilateral plane figure of which no two sides are parallel. British. trapezoid (def 1a).
- triennium — a period of three years.
- trifolium — any leguminous plant of the temperate genus Trifolium, having leaves divided into three leaflets and dense heads of small white, yellow, red, or purple flowers: includes the clovers and trefoils
- triforium — (in a church) the wall at the side of the nave, choir, or transept, corresponding to the space between the vaulting or ceiling and the roof of an aisle, often having a blind arcade or an opening in a gallery.
- tripudium — an ancient religious dance
- trisodium — pertaining to molecules containing three sodium atoms.
- triumphal — of, pertaining to, celebrating, or commemorating a triumph or victory: a triumphal banquet; a triumphal ode.
- triumphed — the act, fact, or condition of being victorious or triumphant; victory; conquest.
- ununtrium — a superheavy, synthetic, radioactive element with a short half-life. Symbol: Uut; atomic number: 113.
- unununium — roentgenium.
- uredinium — Mycology. the fruiting body of the rust fungi that bears urediospores.
- uropygium — the projecting terminal portion of a bird's body, from which the tail feathers spring.
- vaccinium — a member of a shrub genus including blueberries and cranberries
- vestigium — a vestigial structure of any kind; vestige.
- virginium — (formerly) francium. Symbol: Vi.
- vitallium — a corrosion-resistant alloy of cobalt, chromium, and molybdenum, used for dentures, in bone surgery and prosthetics, in castings, etc.
- ytterbium — a rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb; atomic weight: 173.04; atomic number: 70; specific gravity: 6.96.
- zirconium — a metallic element found combined in zircon, baddeleyite, etc., resembling titanium chemically: used in steel metallurgy, as a scavenger, as a refractory, and as an opacifier in vitreous enamels. Symbol: Zr; atomic weight: 91.22; atomic number: 40; specific gravity: 6.49 at 20°C.
- zoocytium — the outer sheath or branched support of colonies of some social minute aquatic creatures