Ecology
Trophic
From Greek 'trophe' meaning nourishment
Relating to feeding and nutrition. Describes the position of organisms in a food chain based on what they eat and what eats them.
Biological Context
Trophic levels organize food webs: primary producers (plants), primary consumers (herbivores), secondary consumers (predators), and so on. 'Trophic cascade' refers to effects rippling through these feeding levels.