The best way to learn medical terminology is to become familiar with the structure and the most commonly used components. Basic Components of Medical Terms. Most medical terms consist of three basic components: root word (the base of the term), prefixes (letter groups in front of the root word) and suffixes (letter groups at the end of the root word). When placed together, these three components define a particular medical term.
Vicar general. A vicar general (previously, archdeacon) is the principal deputy of the bishop of a diocese for the exercise of administrative authority and possesses the title of local ordinary.
A priest is much the same as a vicar, except that a priest often has the role of offering a sacrifice, which is why you see it in Catholic churches, which offer the Eucharist, the re-sacrifice of the body of Christ.