Definition of "persistency" [persistency]

• Persistence. (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.

• "Now that's what I call persistency in the face of adversity."
• "Results of a long-term persistency analysis showed that after 18 months of treatment, 13 percent of Lialda patients (n = 6,170) were persistent (continuing)."
• "Results of a long-term persistency analysis showed that among continuing and restart patients who were persistent (continuing) after three months of therapy, the persistency rates at 12 and 18 months were as follows: Lialda patients (n = 3,687) were 47 and"