reversible

Etymology

Probably from Middle French.

adj

1. Able to be reversed.
   … the Welwyn bottleneck will be relaid with high-speed turnouts and resignalled for reversible working. 1960 June, “Talking of Trains: Sunday on the G.N. line”, in Trains Illustrated, page 322
2. (of clothing) Able to be worn inside out.
3. (chemistry, of a chemical reaction) Capable of proceeding in either direction.
4. (physics, of a phase change) Capable of returning to the original state.
5. (thermodynamics) Capable of returning to the original state without consumption of free energy and increase of entropy.
6. (law) Providing sufficient reason for a court decision to be overturned on appeal.

noun

1. A garment that can be worn inside out.