9-letter words ending with IUM
Dive into the specific realm of 9-letter words that conclude with the letter IUM. This focused section reveals the fascinating ways in which words of this particular length, ending with IUM, contribute to the richness of the English language. Whether it's for expanding your vocabulary, solving puzzles, or simply for the love of words, discover how these terms uniquely blend length and ending sound.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| plutonium | 13 | a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239 | - |
| potassium | 13 | a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite | - |
| gymnasium | 17 | athletic facility equipped for sports or physical training | - |
| magnesium | 14 | a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine) | - |
| symposium | 18 | a meeting or conference for the public discussion of some topic especially one in which the participants form an audience and make presentations | - |
| harmonium | 16 | a free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows | - |
| aluminium | 13 | a silvery ductile metallic element found primarily in bauxite | - |
| bacterium | 15 | (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants | - |
| zirconium | 22 | a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon | - |
| palladium | 14 | a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry | - |
| terrarium | 11 | a vivarium in which selected living plants are kept and observed | - |
| presidium | 14 | a permanent executive committee in socialist countries that has all the powers of some larger legislative body and that acts for it when it is not in session | - |
| strontium | 11 | a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite | - |
| euphonium | 16 | a bass horn (brass wind instrument) that is the tenor of the tuba family | - |
| sensorium | 11 | the areas of the brain that process and register incoming sensory information and make possible the conscious awareness of the world | - |
| deuterium | 12 | an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen) | - |
| cymbidium | 21 | any of various plants of the genus Cymbidium having narrow leaves and a long drooping cluster of numerous showy and variously colored boat-shaped flowers; extensively hybridized and cultivated as houseplants and important florists' flowers | - |
| collyrium | 16 | lotion consisting of a solution used as a cleanser for the eyes | - |
| germanium | 14 | a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite | - |
| neodymium | 17 | a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium | - |
| nelumbium | 15 | - | - |
| neptunium | 13 | a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium | - |
| pastorium | 13 | - | - |
| mazaedium | 23 | - | - |
| ytterbium | 16 | a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime | - |
| zoocytium | 25 | - | - |
| virginium | 15 | - | - |
| septarium | 13 | - | - |
| sporidium | 14 | - | - |
| rhipidium | 17 | - | - |
| rhizobium | 25 | the type genus of Rhizobiaceae; usually occur in the root nodules of legumes; can fix atmospheric oxygen | - |
| ruthenium | 14 | a rare polyvalent metallic element of the platinum group; it is found associated with platinum | - |
| sacrarium | 13 | - | - |
| sympodium | 19 | - | - |
| synangium | 15 | - | - |
| synedrium | 15 | - | - |
| syncytium | 19 | a mass of cytoplasm containing several nuclei and enclosed in a membrane but no internal cell boundaries (as in muscle fibers) | - |
| tellurium | 11 | a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold | - |
| tentorium | 11 | (anatomy) a fold of dura mater that covers the cerebellum and supports the occipital lobes of the cerebrum | - |
| trapezium | 22 | the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals | - |
| triennium | 11 | - | - |
| trifolium | 14 | any leguminous plant having leaves divided into three leaflets | - |
| triforium | 14 | - | - |
| tripudium | 14 | - | - |
| trisodium | 12 | - | - |
| unununium | 11 | - | - |
| uropygium | 17 | posterior part of a bird's body from which the tail feathers grow | - |
| uredinium | 12 | - | - |
| vaccinium | 18 | evergreen or deciduous berry-bearing shrubs of northern hemisphere: cranberries; blueberries | - |
| vestigium | 15 | - | - |
| sulfonium | 14 | - | - |
| pollinium | 13 | a coherent mass of pollen grains (as in orchids) | - |
| pomoerium | 15 | - | - |
| prooemium | 15 | - | - |
| purdonium | 14 | - | - |
| pterygium | 17 | either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pinguecula | - |
| pycnidium | 19 | flask-shaped asexual structure containing conidia | - |
| reptilium | 13 | - | - |
| hydronium | 18 | - | - |
| hospitium | 16 | - | - |
| impluvium | 18 | - | - |
| magnalium | 14 | - | - |
| martyrium | 16 | - | - |
| marsupium | 15 | an external abdominal pouch in most marsupials where newborn offspring are suckled | - |
| manubrium | 15 | the upper part of the breastbone | - |
| helvetium | 17 | - | - |
| herbarium | 16 | a collection of dried plants that are mounted and systematically classified for study | - |
| hieracium | 16 | large genus of perennial hairy herbs of Europe to western Asia to northwestern Africa and North America; few are ornamental; often considered congeneric with Pilosella | - |
| contagium | 14 | - | - |
| cormidium | 16 | - | - |
| criterium | 13 | a bicycle race held on a short course (usually less than 5 km or 3 miles) | - |
| ctenidium | 14 | comb-like respiratory structure serving as the gill of certain mollusks | - |
| decennium | 14 | a period of 10 years | - |
| dentalium | 12 | - | - |
| deliquium | 21 | a spontaneous loss of consciousness caused by insufficient blood to the brain | - |
| diacodium | 15 | - | - |
| diazonium | 21 | the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes | - |
| desmodium | 15 | beggarweed; tick trefoil | - |
| dichasium | 17 | - | - |
| drepanium | 14 | - | - |
| effluvium | 20 | a foul-smelling outflow or vapor (especially a gaseous waste) | - |
| ectropium | 15 | - | - |
| elaterium | 11 | - | - |
| coenobium | 15 | - | - |
| coccidium | 18 | parasitic on the digestive epithelium of vertebrates and higher invertebrates | - |
| collegium | 14 | - | - |
| collodium | 14 | - | - |
| colluvium | 16 | - | - |
| columbium | 17 | a former name for niobium | - |
| excambium | 24 | - | - |
| fastigium | 15 | - | - |
| gelsemium | 14 | evergreen twining shrubs of Americas and southeastern Asia | - |
| glucinium | 14 | a light strong brittle grey toxic bivalent metallic element | - |
| gynoecium | 17 | a female gametoecium | - |
| gynaecium | 17 | - | - |
| encolpium | 15 | - | - |
| epilobium | 15 | large widely distributed genus of herbs and subshrubs of especially western North America and Arctic areas | - |
| epimysium | 18 | - | - |
| epicedium | 16 | - | - |
| entropium | 13 | - | - |
| beryllium | 16 | a light strong brittle grey toxic bivalent metallic element | - |
| berkelium | 17 | a radioactive transuranic element; discovered by bombarding americium with helium | - |
| bronchium | 18 | - | - |
| caldarium | 14 | - | - |
| carbonium | 15 | - | - |
| calvarium | 16 | - | - |
| cerastium | 13 | mouse-eared chickweed | - |
| asplenium | 13 | in some classification systems placed in family Polypodiaceae | - |
| anthurium | 14 | any of various tropical American plants cultivated for their showy foliage and flowers | - |
| anthodium | 15 | - | - |
| arbitrium | 13 | - | - |
| americium | 15 | a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms | - |
| achaenium | 16 | - | - |
| moscovium | 18 | - | - |
| joliotium | 18 | - | - |
| hydroxium | 25 | - | - |
| dicalcium | 16 | - | - |
| flerovium | 17 | - | - |
