Collins COBUILD Advanced Learner's English Dictionary - ecological

1. Ecological means involved with or concerning ecology. Large dams have harmed Siberia’s delicate ecological balance. ADJ: ADJ n • ecologically It is economical to run and ecologically sound. ADV 2. Ecological groups, movements, and people are concerned with preserving the environment and natural resources, so that they can be used in a sensible way, rather than being wasted. Ecological groups say that nothing is being done to tackle the problem. ADJ: ADJ n