permanent

Meanings

Adjective

• Without end, eternal.
• Lasting for an indefinitely long time.

Noun

• A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.
• Given an $n\; \backslash times\; n$ matrix $a\_\{ij\}\; \backslash ,$, the sum over all permutations $\backslash pi\; \backslash ,$ of $\backslash prod\_\{i=1\}^n\{a\_\{i\backslash pi(i)\}\}$.
• A card whose effects persist beyond the turn on which it is played.

Verb

• To perm (the hair).

Related

Opposite words

• impermanent, temporary

Origin

• Used in English since 15th century, from Middle French permanent, from Latin permanens, from permanēo.