trophic
TROH-fik
/ˈtroʊfɪk/
Relating to feeding, nutrition, or position in a food chain.
Used primarily in ecology terms like 'trophic level' or 'trophic cascade' to describe energy transfer.
The story behind the word. From Greek 'trophe' (nourishment/food). Biologists adopted it in the early 20th century to construct system categories for ecological food chains.
Word relationships
- nutritional: Nutritional relates to personal dietary health, whereas trophic relates to ecological feeding structures.
Commonly confused with
- tropic: Tropic refers to the equatorial geographical regions; trophic refers to feeding and nutrition.
Word family
- autotroph (noun): An organism that manufactures its own food.
- heterotroph (noun): An organism deriving nourishment from organic substances.
Collocations
- trophic level
- trophic cascade
- trophic network
- trophic interaction
Example sentences
- "Removing top predators caused a disastrous trophic cascade that transformed the entire valley ecosystem." Ecological science
Memory hook
TROPHIC = TROPHY for food! Who eats whom to win nourishment? Relating to eating and biological food chains.
When not to use
Avoid in everyday speech; strictly reserved for formal ecological and biological contexts.
Fun facts
- Only about 10% of energy moves up from one trophic level to the next; 90% is lost as heat.
Related words
Explore more words
symbiotic, regenerative, pelagic, terrestrial, biodiverse, tectonic
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