Meaning of oligotrophic

ol•i•go•troph•ic

Pronunciation: (ol"i-gō-trof'ik, -trō'fik), [key]
— adj. Ecol.
  1. (of a lake) characterized by a low accumulation of dissolved nutrient salts, supporting but a sparse growth of algae and other organisms, and having a high oxygen content owing to the low organic content.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.