Definition: Breadboard
Breadboards are thin plastic boards used to hold electronic components which need to be wired together such as microcontrollers, resistors, capacitors, and chips. They are often used to develop prototypes of electronic circuits or for educational kits and are reusable for future projects.
Each breadboard contains spring clip contacts that are typically arranged in matrices with certain blocks of clips already wired together. The components and breadboard wires (assorted wires with pins at either/both ends) are plugged into the clips to create various circuits. Each breadboard also is supplied with metal spring clips along each side that are used as common power and signal buses.