# permanent

## English

### Etymology

Used in English since 15th century, from Middle French permanent, from Latin permanens, from permanēo (I stay through).

### Pronunciation

permanent (comparative more permanent, superlative most permanent)

1. Without end, eternal.
Nothing in this world is truly permanent.
2. Lasting for an indefinitely long time.
The countries are now locked in a permanent state of conflict.

#### Translations

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

### Noun

Wikipedia has an article on:
Wikipedia

permanent (plural permanents)

1. A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.
• 1943, Raymond Chandler, The High Window, Penguin 2005, p. 8:
She had pewter-coloured hair set in a ruthless permanent, a hard beak and large moist eyes with the sympathetic expression of wet stones.
2. (linear algebra, combinatorics) Given an ${\displaystyle n\times n}$ matrix ${\displaystyle a_{ij}\,}$, the sum over all permutations ${\displaystyle \pi \,}$ of ${\displaystyle \prod _{i=1}^{n}{a_{i\pi (i)}}}$.