data deficient

[ dey-tuh di-fish-uhnt, dat-uh, dah-tuh ]

adjective

, Biology, Ecology.

1. (of a plant or animal species) lacking a properly assessed conservation status due to insufficient information on population and distribution, as categorized by the IUCN Red List: : DD

   We are tracking the populations of data deficient fishes and mollusks.

Word History and Origins

Origin of data deficient¹

First recorded in 1995–2000