trophic
trophic — adjective
- trophicpositive
- more trophiccomparative
- most trophicsuperlative
1. describing what something eats and how energy or food moves between living thing
describing what something eats and how energy or food moves between living things in an ecosystem, especially used by scientists when grouping animals and plants by what eats what.
Esteban's class mapped trophic levels in the pond, from algae up to herons.
collocation: trophic level(s)
A single oil spill can disrupt every trophic level along the coast for years.
collocation: trophic level
Removing wolves from Yellowstone caused a famous trophic cascade that changed the rivers themselves.
Meera's poster showed how plastic moves up the trophic chain from tiny fish to tuna.
Scientists worry that warmer seas are breaking the trophic links between krill and whales.
- nutritional
broader; covers food and diet in general, not the ecological position
- feeding (attributive)
plainer alternative when writing for non-specialists
文法句型
trophic + noun (level, cascade, web, chain, structure)
用法筆記
Almost always used before a noun (trophic level, trophic cascade, trophic web) rather than after 'be'. Common in ecology and nutrition writing; rare in everyday English.
常見錯誤
2. (of a hormone or chemical signal) making a gland in the body send out another ho
(of a hormone or chemical signal) making a gland in the body send out another hormone into the blood, so one signal triggers a second one.
TSH is a trophic hormone that tells the thyroid to release its own hormones.
collocation: trophic hormone
The pituitary gland sends out several trophic hormones that control glands all over the body.
collocation: trophic hormones (pituitary)
Dr. Min explained that ACTH has a trophic effect on the adrenal glands.
Without these trophic signals from the brain, the ovaries stop making their hormones.
- stimulating (of a hormone)
plainer; used in patient-facing writing
- tropic
older spelling still seen in medical texts (e.g. tropic hormone)
文法句型
trophic + hormone / effect
用法筆記
Only used before a noun, almost always paired with 'hormone', 'effect', or 'signal'. Distinguish from sense 1: this sense is about one hormone triggering another inside the body, not about eating or ecosystems.