What does the medical terminology combining form -Ium mean?

Answer 1

"ium" is a suffix borrowed from the Latin language which is what most medical terminology is based upon. It is like saying the "body of" or the item of such as ilium which is like saying referring to the lieus. See link below of suffixes from Answers com.

Answer 2

-um is actually a suffix, not a prefix. It means structure.

Answer 3

The medical terminology combining form -ium typically refers to a chemical element. For example, sodium is a chemical element commonly used in medical terminology as "natrium."