One of the mysteries of the English language finally explained.
1Biology. Feeding on several kinds of food; obtaining nutrients in more than one way; specifically (of a parasitic organism) infesting many host species; (of a bee) visiting the flowers of many species.
2Entomology. Of an ovariole: having trophocytes or nurse cells enclosed in the follicle with the oocytes.
3Ecology. Of a lake: rich in nutrients, or a particular category of nutrient.
Mid 17th century (in an earlier sense). From poly- + -trophic. In sense 1 after Hellenistic Greek πολυτρόϕος supplying food, nutritious, highly nourished.
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