An original idea or plan attributed to a person or group.(noun)
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.
Use "brainchild" in a sentence
"In addition to that, Haugh's "Tractorri" - that's what he calls his brainchild - also comes with the Gallardo's E-gear sequential automatic transmission and its all-wheel drive system."
"Popgadget: If you are a digger for gizmos with small form factors, this first brainchild from the Korean company"
"Mr. Self’s brainchild is called the Variable Gantry Mount, and for those of you who like to shoot at long range, it can save you a lot of aggravation and money."