from The American Heritage® Dictionary of the English Language, 4th Edition
- suffix Of, relating to, or characterized by a specified kind of nutrition: polytrophic.
- suffix Acting on something specified: gonadotrophic.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- suffix Used to form adjectives corresponding to nouns ending in -trophy
From trophic.(American Heritage® Dictionary of the English Language, Fourth Edition)