What is the prefix suffix root combining form and vowel of subcutaneous?

Here's the breakdown of the word "subcutaneous":

* Prefix: sub- (meaning "under" or "below")

* Root: cutane- (meaning "skin")

* Suffix: -ous (meaning "pertaining to" or "characterized by")

There is no combining form in this word.

There's also no distinct vowel in this word that functions as a connecting element. The vowel "e" in "subcutaneous" is part of the root "cutane-."

Therefore, the complete breakdown is:

* Prefix: sub-

* Root: cutane-

* Suffix: -ous