persistence

Meanings

1. 1
   noun

   The property of being persistent.

   You've got to admire her persistence. She's asked him out every day for a month even though she keeps turning him down.

2. 2
   noun

   Of data, the property of continuing to exist after the termination of the program.

   Once written to a disk file, the data has persistence: it will still be there tomorrow when we run the next program.

3. 3
   noun

   The number of times an operation can be iteratively applied to a number before it reaches a permanently constant state.

   The persistence of the number 39 under the operation of multiplying the digits of the number is three, because 3x9 = 27, 2x7 = 14, and 1x4 = 4, and no further iterations will change the number again.

4. 4
   noun

   the act of persisting or persevering

5. 5
   noun

   persistent determination

6. 6
   noun

   the property of a continuous and connected period of time

7. 7
   noun

   Continuation of the previous day's weather (particularly temperature and precipitation statistics).

Etymology

From Middle French persistance.