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1. Of, relating to, or characterized by a specified kind of nutrition or sustenance: auxotrophic.
2. Maintaining the function of or regulating a specified gland or type of tissue: gonadotrophic.

[From trophic. Sense 2, influenced by -tropic.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈtrɒf ɪk, ˈtroʊ fɪk)

of or pertaining to nutrition; involving nutritive processes: a trophic disease.
[1870–75; < Greek trophikós pertaining to food. See tropho-, -ic]
troph′i•cal•ly, adv.


a combining form with the meanings “deriving nourishment” from the source or in the manner specified (autotrophic; eutrophic), “affecting the activity of, maintaining” that specified (thyrotrophic) (in this sense often interchangeable with -tropic); also forming adjectives corresponding to nouns ending in -troph or -trophy (hypertrophic).
[see trophic]
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