Definitions
1.nounA sudden thought, particularly one that solves a long-standing problem."I had been working on the problem for weeks, and then I had a brainstorm and saw that the solution was easy."
2.nounA session of brainstorming, investigating a problem to try to find solutions.
3.nounAn unexpected mental error.
4.verbTo investigate something, or solve a problem using brainstorming.
5.verbTo participate in a brainstorming session.