Words that end with RIUM, grouped by length
- archaebacterium
- corynebacterium
- enterobacterium
- clavicytherium
- conservatorium
- cyanobacterium
- disciplinarium
- disequilibrium
- nitrobacterium
- nonequilibrium
- amphigastrium
- anticlinorium
- armamentarium
- evangeliarium
- hypochondrium
- inclinatorium
- mycobacterium
- perichondrium
- scolopendrium
- succinctorium
- vibracularium
- vivisectorium
- appressorium
- archesporium
- cladosporium
- deinotherium
- dolphinarium
- hypogastrium
- inhalatorium
- mesogastrium
- perinephrium
- radiothorium
- suspensorium
- synclinorium
- unguentarium
- apodyterium
- aspersorium
- clinandrium
- columbarium
- crematorium
- dinotherium
- endometrium
- endoneurium
- epigastrium
- equilibrium
- eubacterium
- formicarium
- frigidarium
- insectarium
- leprosarium
- lubritorium
- maggotorium
- magisterium
- mesothorium
- ministerium
- muscatorium
- nototherium
- ophidiarium
- ostensorium
- perineurium
- planetarium
- polyzoarium
- scriptorium
- sericterium
- subdelirium
- syllabarium
- termitarium
- zoodendrium
- acroterium
- atracurium
- auditorium
- cafetorium
- cinerarium
- desiderium
- digitorium
- embothrium
- epineurium
- eupatorium
- exosporium
- fumatorium
- haustorium
- honorarium
- meitnerium
- moratorium
- natatorium
- oceanarium
- opprobrium
- osmeterium
- polyparium
- praetorium
- psalterium
- puerperium
- sanatorium
- sanitarium
- sanitorium
- seaquarium
- spermarium
- sudatorium
- synandrium
- tepidarium
- vomitorium
- anthurium
- arbitrium
- bacterium
- caldarium
- calvarium
- collyrium
- criterium
- deuterium
- elaterium
- herbarium
- manubrium
- martyrium
- pastorium
- pomoerium
- sacrarium
- sensorium
- septarium
- synedrium
- tellurium
- tentorium
- terrarium
- triforium
- apterium
- aquarium
- bothrium
- ciborium
- conarium
- delirium
- emporium
- fusarium
- imperium
- masurium
- motorium
- ossarium
- proprium
- puparium
- ranarium
- rosarium
- samarium
- solarium
- sudarium
- velarium
- vivarium
- bohrium
- natrium
- orarium
- thorium
- yttrium
- zoarium
- atrium
- barium
- cerium
- corium
- curium