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Created page with 'File:lighterstill.jpgright|frame ==Origins== Middle French persistence (a1475) persistance (1495; French persistance) < persister PERSIST ...'
[[File:lighterstill.jpg]][[File:Persistence_of_Memory.jpg|right|frame]]
==Origins==
Middle French persistence (a1475) persistance (1495; French persistance) < persister PERSIST v. + -ence -ENCE suffix; compare -ANCE suffix. Compare post-classical [[Latin]] persistentia (6th cent.), Italian persistenza (1342 as persistentia), Spanish persistencia (1668).
==Definitions==
*1. The [[action]] or [[fact]] of persisting in a particular [[state]], opinion, [[purpose]], or course of action, esp. despite opposition, setback, or failure; the [[quality]] or [[virtue]] of being persistent.
*2. a. Continued or prolonged [[existence]] or occurrence; duration; continuance.
:b. Physiol. The continuance of a sensation after the stimulus which caused it is removed. persistence of [[vision]] n. the brief retention of a visual impression on the retina after the stimulus which caused it ceases, used to create the [[illusion]] of a moving image in [[film]] and television.
:c. [[Physics]]. = CONSERVATION n. 3. Now hist. persistence of [[energy]] n. (also persistence of [[force]]) (the principle of) conservation of energy. persistence of [[matter]] n. (the principle of) conservation of [[mass]].
:d. The emission of [[light]] by a luminescent substance or [[body]] after the external source of energy is removed; the duration of this.
[[Category: General Reference]]
==Origins==
Middle French persistence (a1475) persistance (1495; French persistance) < persister PERSIST v. + -ence -ENCE suffix; compare -ANCE suffix. Compare post-classical [[Latin]] persistentia (6th cent.), Italian persistenza (1342 as persistentia), Spanish persistencia (1668).
==Definitions==
*1. The [[action]] or [[fact]] of persisting in a particular [[state]], opinion, [[purpose]], or course of action, esp. despite opposition, setback, or failure; the [[quality]] or [[virtue]] of being persistent.
*2. a. Continued or prolonged [[existence]] or occurrence; duration; continuance.
:b. Physiol. The continuance of a sensation after the stimulus which caused it is removed. persistence of [[vision]] n. the brief retention of a visual impression on the retina after the stimulus which caused it ceases, used to create the [[illusion]] of a moving image in [[film]] and television.
:c. [[Physics]]. = CONSERVATION n. 3. Now hist. persistence of [[energy]] n. (also persistence of [[force]]) (the principle of) conservation of energy. persistence of [[matter]] n. (the principle of) conservation of [[mass]].
:d. The emission of [[light]] by a luminescent substance or [[body]] after the external source of energy is removed; the duration of this.
[[Category: General Reference]]