divider

Etymology

PIE word *dwóh₁ divide + -er

noun

1. One who or that which divides or separates.
   1. A physical object for dividing up a space.
      It is perfectly possible to separate one area of a room from another, or even to create an entirely new room, with a lightweight room divider that assembles with a minimum of fuss. 1980, Robert M. Jones, editor, Walls and Ceilings, Time-Life Books, page 58
   2. A piece of card placed in a ring binder to separate groups of documents.
   3. An electronic device for separating a signal, frequency, etc., into two or more parts.
2. A device resembling a drawing compass and used to transfer measurements of length.
3. The median (US) or central reservation (UK) of a highway or other road where traffic in opposite directions are kept separated.