11-Letter Words Ending in IUM

There are 58 11-letter words that end in IUM. 10 are common words, such as CALIFORNIUM and CONDOMINIUM. A rarer one is TETRAZOLIUM. In this set, R is the most frequent open letter (41 words). 4 words contain a doubled letter.

Full list 58

Common words

californiumcondominiumcrematoriumeinsteiniumequilibriummendeleviumpandemoniumpericardiumplanetariumquadrenniumabecedariumantependium
californiumcondominiumcrematoriumeinsteiniumequilibriummendeleviumpandemoniumpericardiumplanetariumquadrenniumabecedariumantependiumantheridiumarchegoniumaspersoriumcarpogoniumclinandriumclostridiumcolumbariumcypripediumendocardiumendocraniumendometriumendotheciumendotheliumepigastriumflorilegiumfrigidariumgametangiumhesperidiuminsectariumlatifundiumleprosariummesotheliummesothoriummonochasiumostensoriumpelargoniumpenicilliumpericraniumperineuriumperitheciumpolychasiumpolyzoariumpositroniumpromyceliumscriptoriumsporogoniumstylopodiumsubdeliriumtermitariumunnilhexiumhormogoniummagisteriumphosphoniumprothalliumstaminodiumtetrazolium

About this list

Words
58 (10 common words)
Common example
californium
Rare example
tetrazolium
Doubled letters
4
Ending in S
0
Most frequent letter
R (41)

Questions

How many 11-letter words ending in ium are there?

58. 10 of them are common words.

What is a common example?

CALIFORNIUM is among the common words in this set.