When a hair stylist perms someone's hair, they curl it and treat it with chemicals so that it stays curly for several months. She had her hair permed. + permed permed dry, damaged or permed hair. A city of west-central Russia on the Kama River in the foothills of the Ural Mountains. Founded in the early 18th century when a copper foundry was built there, it grew rapidly as an industrial center in the 19th century. Population: 1,091,056. To give (hair) a permanent. a process in which you make straight hair curly by using chemicals, or hair that has been treated in this way American Equivalent: permanent (PERMANENT WAVE)
A unit of water vapor transmission defined as 1 grain of water vapor per square foot per hour per inch of mercury pressure difference (1 inch mercury = 0 49 psi) Metric unit of measure is ng/m2 s Pa 1 perm = 55 ng/m2 s Pa