Definition of oligotropic in US English:

oligotropic

adjective

Entomology
  • Of an insect, especially a bee: collecting nectar from the flowers of only a few related plants. Contrasted with polytropic.

adjective

Ecology
  • Oligotrophic.

Origin

Late 19th century. From oligo- + -tropic, after German oligotrop, adjective<br>1940s; earliest use found in Philosophical Transactions of the Royal Society of London. Variant of oligotrophic, by association of the second element with -tropic.