Meaning of -ARIUM in English
a suffix occurring in loanwords from Latin, which often denote a location or receptacle ( armarium; caldarium; solarium; vivarium ). It has limited productivity in English, esp. in words denoting an artificial environment for plants or animals, on the model of vivarium or herbarium: aquarium; insectarium; terrarium. Cf. -ary .
[ -arium; see -ARY ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012