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 "upgrowth" in a sentence
"He works for the Campaign for Liberty, an upgrowth of the Ron Paul presidential campaign which promotes the constitutional rights."
"Then again another acute and startling outbreak, a swift upgrowth of monstrous weedy thickets, a drifting dissemination about the world of inhumanly growing thistles, of cockroaches men fought with shot guns, or a plague of mighty flies."
"It shows us primitive or primeval man, the dawn of civilization, the daybreak of religion, the upgrowth of national life."