Sometimes it seems like medical terms are Greek. That is an accurate observation because the terms usually have a Greek or Latin composition . Terms usually have a root word that is the focus or basis of the term. For example, hem or hemo may be used to designate red blood cells. A suffix such as lysis (which is defined as destruction) may be added to form the word hemolysis , which refers to the destruction of red blood cells. Thus, most medical terms are made up of a prefix or a suffix, such as lysis and a root word such as hem. The “o” in hemolysis is often referred to as a combining vowel. These are useful for pronunciation of the terms.
Here are some of the most common laboratory terms and their definitions and roots: