a. Repetition of a behavior, idea, or phrase in absence of any functional purpose for the repetition, usually caused by brain injury or other disorder.
b. The tendency to continue or repeat a behavior, sensation, or thought after the cessation of the original stimulus.
2. The act or an instance of persevering; perseverance.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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