The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The study of the effects of radiation and radioisotopes on an ecological population or community.
- raˌdi·o·ecˌo·logˈi·cal adjective
- raˌdi·o·e·colˈo·gist noun