(biology) The branch of biology dealing with the relationships of organisms with their environment and with each other.

plural of ecology

Relating to ecology, the interrelationships of organisms and their environment. / Not harmful to the environment.

Relating to ecology, the interrelationships of organisms and their environment.

In an ecological manner. / regarding ecology

An ideology focusing on ecology and the environment.

The application of ecological methods

Alternative spelling of hydroecology

A large concrete block with a groove in the bottom face and a tongue on the top face to eliminate slippage when they are stacked. There is also a steel loop on the top face to facilitate lifting. The blocks are stacked in an offset manner to create a wall for retaining earth by means of their great mass. A wall built with them can be readily dismantled and the blocks reused (in ecological fashion).

the study of the effects of chemical compounds on the interactions of living organisms