What is Persister?
Persister definition and meaning on Dictionary terms:
verb (used without object)
to continue steadfastly or firmly in some state, purpose, course of action, or the like, especially in spite of opposition, remonstrance, etc.: to persist in working for world peace; to persist in unpopular political activities.
to last or endure tenaciously: The legend of King Arthur has persisted for nearly fifteen centuries.
to be insistent in a statement, request, question, etc.