Words ending with um

abecedarium abomasum acetabulum achenium aciculum acroclinium actinium addendum aethalium ageratum agrobacterium alarum albendazolum album allium alluvium alum aluminium aluminum alyssum ambulacrum amentum americium amianthium ammonium amphithecium androsporangium antebellum antebrachium antepartum antheridium antiserum antrum apodyterium apothecium appressorium apterium aquarium arboretum arcanum archaebacterium archaeolithothamnium archegonium archesporium arenium asphaltum asylum atracurium atrium auditorium avium azolium azonium azospirillum azothionium azoxonium bacteriium bacterium baculum baptisterium barium basidium benzopyrylium berkelium beryllium biennium bifolium bimillennium bisbenzylisoquinolinium blennorrhagicum bohrium bottomonium botulinum brachium bryophyllum bubblegum bum cadmium caecum caesium calcium caldarium californium cambium candelabrum capitulum capsicum carbonium carborundum cecum cefalonium cefmepidium centennium cephalonium cerastium cerebellum cerebrum cerium ceruleum cesium chalcogenapyrylium charmonium checksum chloroplatinum chondrocranium chromium chrysanthemum chum cilium cingulum claggum clavicytherium clitellum clostridium cockalorum cocoplum coenobium coenosteum coliseum collegium colloquium colluvium colosseum colostrum columbarium cometarium compendium condominium consortium contagium continuum conundrum copernicium cornum corundum corynebacterium cranium crematorium cryptosporidium curium curriculum cyanobacterium cyathium cycleonium cymbidium cynoglossum darmstadtium datum decennium decorum degum delirium delphinium desideratum deuterium diazonium dichasium dichlorobenzyltributylphosphonium dictum diestrum disequilibrium disodium diverticulum dockominium domatium dominium dorsum drum dubium dubnium dumdum duodenum dysprosium eardrum ectropium effluvium einsteinium elogium eluvium emplastrum emporium encomium endocardium endometrium endosporium endothelium enrheum enterobacterium epicardium epigastrium episporium epithelium equilibrium erbium erratum estrum eubacterium euphonium europium eusporangium exoperidium exordium exosporium exploratorium extispicium extraequilibrium extremum eyespeculum factotum fermium ferroaluminum ferrocerium ferrochromium ferromagnesium ferromolybdenum ferroniobium ferrotitanium ferrouranium ferrovanadium flagellum flerovium fluoronium folium forum francium frenulum frigidarium fulcrum gadolinium gallium geoglossum geranium germanium glum gnaphalium gonidium granum gubernaculum gum gymnasium gymnosporangium gynoecium gynosporangium gypsum haematobium haemosporidium hafnium harmonium hassium haustorium helianthemum helichrysum helium herbarium heterophyllum hibernaculum hilum holmium honorarium hoodlum hordeolum horologium hum humdrum hydroxonium hymenium hypochondrium hypocleidium ileum ilium illium imidazolium incunabulum indium inductorium inequilibrium interambulacrum intermedium interregnum interstitium ipratropium iridectropium iridentropium iridium irimethylammonium ischium jejunum jugum kettledrum labium laburnum lanthanum laudanum lawrencium linoleum lithium livermorium lixivium locum lomentum lubritorium lutetium luteum macrosporangium magnesium magnum manubrium martyrium mausoleum maximum meconium mediastinum medium meitnerium memorandum mendelevium menstruum mercuriammonium mesonotum mesosporium mesosternum mesothelium mesovarium metanotum metasternum microsporangium millennium miniatum minimum modicum molluscum molybdenum momentum monoammonium monochasium monosodium monstrum moratorium mum muonium museum mycelium mycobacterium myocardium myometrium nasturtium natatorium neodymium neopallium neptunium neurocranium neuroepithelium ngultrum niobium nobelium nonequilibrium nonlithium nonmagnesium nonminimum nonpetroleum nostrum oceanarium omentum omnium omosternum oogonium oophoridium operculum opium opossum opprobrium optimum organolithium organomagnesium osculum osmium ossarium osteospermum ovum pablum pabulum paleostriatum palladium pallium pandemonium paramecium paramoecium paraperigonium pendulum penicillium penultimatum pericardium perichondrium pericranium perigynium perimetrium perimysium perinephrium perineum perionychium periosteum perisporium peristomium peristylium peristylum peritoneum petrolatum petroleum philtrum phosphonium photoalbum phyllopodium phylum planetarium plantarium plasmodium plastidium platinum plectrum pleuroperitoneum plum plutonium pneumomediastinum pneumopericardium podium podophyllum polemonium polonium polycodium pomatum positronium possum postpartum potassium practicum praseodymium premium presidium promethium pronotum prosternum prostomium protactinium protocerebrum protonephridium pseudocapillitium pseudoplasmodium pseudopodium pseudospermium psychomanteum pterygium puerperium punctum pyrethrum pyridinium pyroxonium pyrylium quadrennium quadriennium quantum quarkonium quinquennium quorum radiostrontium radiothallium radium rectum referendum residuum respiratorium resum reticulum rhapidophyllum rhenium rheum rhinosporidium rhizobium rhodium roentgenium rostrum rubidium rum ruthenium rutherfordium sacrum samarium sanatarium sanatorium sanctorium sanctum sanitarium sanitorium sargassum scammonium scandium schistidium sclerotium scrotum scrum scum scutum seaborgium sebum sedum selenium selenonium septennium septum sequestrum serum sexennium simulacrum slum sodium solanum solarium sorghum spectrum speculum spermagonium spermatangium spermatium spermatogonium spermogonium sphagnum spiculum spoliarium sporangium sporidium sporogonium sputum stadium stannum sternum stickum stratum striatum strontium strum studium stumblebum stylidium stylodium stylogonidium stylopodium subcutaneum suboptimum subphylum substratum sugarplum sulfonium sulphonium sum swum syconium symposium synangium syncerebrum synclinorium syncytium synsacrum syzygium talcum tantalum tantrum technetium tedium tellurium templum tenaculum tepidarium terbium terrarium thallium thiazolium thorium thrum thulium timpanum tintinnabulum tintinnum titanium toponium trapezium tricalcium triennium tritium tritocerebrum tweedledum tympanum ultimatum ununoctium ununpentium ununseptium ununtrium uranium uropygium vacuum vanadium varum vasculum velarium vellum velum vestibulum vexillum vibraculum viburnum vitium vivarium xanthium xanthylium xenodochium xiphisternum xystum ytterbium yttrium yum zanthoxylum zirconium zoarium zoecium zoocytium zoodendrium zooecium zoogonidium zoospermium zoosporangium zoothecium zygosporangium zythum