Medical terminology is composed of a prefix, root word, and suffix: Prefix: A prefix is placed at the beginning of a word to modify or change its meaning. Pre means "before." Prefixes may also indicate a location, number, or time.
Root: central part of a word.
Suffix: The ending part of a word that modifies the meaning of the word.
Additional resources: [Intro to med terms] [Med terms rules] [Med term reference] [Word building reference] [Practice Exams]