- any plant or animal species that is a candidate for designation as an endangered species or threatened species.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A plant or animal species that is classified by a government agency as a candidate for possible listing as an endangered or threatened species.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.