Anomia

Anomia is a disordered speech condition in which an individual has difficulty recalling the proper word to name or describe an object, quality, or situation. This is a main symptom of aphasias which are abnormal speech conditions that result from brain damage causing sufferers to have difficulty speaking or comprehending language. Anomia, meaning "without a name," causes an individual to have difficulty or an inability to find the proper word they are trying to use.

For example, when asked what an apple is, a sufferer of anomia wouldn't be able to recall the word apple. They would try to find the word they are looking for and frequently use the fragments "Um" and "Uh" as they are trying to remember the correct word.