← Word Roots, Prefixes, Suffixes and Combining Forms Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All A-, an- Absence or lack acardia, lack of a heart, anaerobic, in the absence of oxygen Ab- Departing from; away from abnormal, departing from normal Acou- Hearing acoustics, the science of sound Ac-, acro- Extreme or extremity; peak acrodermatitis, inflammation of the skin of the extremities Ad- To or toward adorbital, toward the orbit