PERSISTENCES
Noun
persistences
plural of persistence
Source: Wiktionary
PERSISTENCE
Per*sist"ence, Per*sist"en*cy, n. Etym: [See Persistent.]
1. The quality or state of being persistent; staying or continuing
quality; hence, in an unfavorable sense, doggedness; obstinacy.
2. The continuance of an effect after the cause which first gave rise
to it is removed; as: (a) (Physics)
Definition: The persistence of motion.
(b) (Physiol.) Visual persistence, or persistence of the visual
impression; auditory persistence, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition