'ecologist' definitions:

Definition of 'ecologist'

(from WordNet)
noun
A biologist who studies the relation between organisms and their environment

Definition of 'ecologist'

From: GCIDE
  • ecologist \ecologist\ ([-e]*k[o^]l"[-o]*j[i^]st), n. a biologist who studies the relation between organisms and their environment. [WordNet 1.5]