Definition of oligotrophy in US English:

oligotrophy

noun

Ecology
  • See oligotrophic

    • ‘This production increase suggests that a shift in the trophic status of the river from oligotrophy to eutrophy accompanied development of New Bedford's commercial economy.’
    • ‘Oligotrophy, the obligate or facultative capacity to live in low-nutrient habitats, has played a major role in the evolution of photosynthetic organisms.’

Pronunciation

oligotrophy

/ˌäliˈɡätrəfē/