- Medicine/Medical. pertaining to or caused by dystrophy.
- Ecology. (of a lake) having too low an accumulation of dissolved nutrients to support abundant plant life; having highly acid, brownish waters filled with undecayed plant materials, and eventually developing into a peat bog or marsh.
- Having brownish acidic waters, a high concentration of humic matter, and a small plant population. Used of a lake, pond, or stream. Compare eutrophic oligotrophic.