| Definitions | | permanent |
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noun
- (colloquial) A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks.
- (combinatorics) Given an <math>n \times n</math> matrix <math>a_{ij} \,</math>, the sum over all permutations <math>\pi \,</math> of <math>\prod_{i=1}^n{a_{i\pi(i)}}</math>.
adjective
- Without end, eternal.
- Nothing in this world is truly permanent.
- Lasting for an indefinitely long time.
- The countries are now locked in a permanent state of conflict.
Etymology: From French, permanent, from permanens (continuing), from permaneoLatin, permanÄo (to stay to the end). Used in English since 15th century.
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Full Definition of permanent
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