The state or quality of being persistent; persistency.(noun)
Continuance of an effect after the cause is removed: persistence of vision. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "persistence" in a sentence
"Another secret to my persistence is my low-budget approach."
"If it had not been for the patience and what we call the persistence of Columbus, America would never have been discovered -- at least not in his time."
"Indeed, my goal is to teach you what I call the persistence hunt trot, a trot that once mastered gives the Grok in you the ability to cover large distances efficiently and smoothly when needed."