Definition of "breadboard" [breadboard]

• A board on which bread is sliced or dough is kneaded. (noun)
• An experimental model, especially of an electric circuit; a prototype. (noun)
• A thin, blank, often white board on which a prototype circuit with numerous connections for circuit elements is constructed. (noun)
• To construct an experimental model of (an electric circuit, for example). (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Using a plastic foam "breadboard," Tom began experimenting with various circuit designs."
• "Apart from useful experimental R&D, we have achieved major theoretical physics breakthroughs that have enabled us to reach a point where Lattice is finally ready to begin an intensive engineering program aimed at building prototype 'breadboard' LENR power generation devices."
• "'breadboard' of the coronagraph - which will be capable of spectroscopy as well as high-resolution imaging."