Growing in rubbish, poor land, or waste.(adjective)
A plant that grows in rubbish, poor land, or waste.(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 "ruderal" in a sentence
"Such remnants are expected to lose a significant part of their biodiversity due to the increase of lianas and ruderal species."
"Recurrent disturbance tends to select for species with ruderal characteristics, some of which are found in species living in sites where freeze – thaw cycles predominate."
"Reliance upon wind dispersal is common among many weedy or ruderal species."