Something prefabricated, especially a building or section of a building.(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 "prefab" in a sentence
"Pod living is becoming a new trend in prefab design — small houses carefully designed to contain everything you need to sustain yourself in a"
"This steel clad prefab is a compact two bedroom “mountain refuge” with a welcoming, and surprisingly roomy, wooden interior."
"I think Rocio Romero is the best I can find in prefab/kit homes."