per·ma·nent 
(pûrmə-nənt)
(pûrmə-nənt)adj.
1. Lasting or remaining without essential change: "the universal human yearning for something permanent, enduring, without shadow of change" (Willa Cather).
2. Not expected to change in status, condition, or place: a permanent address; permanent secretary to the president.
n.
Any of several long-lasting hair styles usually achieved by chemical applications that straighten, curl, or wave the hair.
[Middle English, from Old French, from Latin permanēns, permanent-, present participle of permanēre, to endure : per-, throughout; see PER- + manēre, to remain; see men-3 in the Appendix of Indo-European roots.]
perma·nent·ly adv.