œcologist

Noun

 * 1) * April 1895, Popular Science, page 857:
 * The course of events in a body like one of the station’s lakes, with its extreme seasonal vicissitudes, ranging from complete overflow and loss of identity to absolute drying away in now and then an exceptional year, is extremely interesting to the œcologist.
 * The course of events in a body like one of the station’s lakes, with its extreme seasonal vicissitudes, ranging from complete overflow and loss of identity to absolute drying away in now and then an exceptional year, is extremely interesting to the œcologist.