Also found in: Medical.
Organism obtaining its food in a specified way: autotroph; chemotroph.
[From Greek -trophos, one who nourishes, one who is nourished, from Greek trephein, to nourish.]
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.
var. of tropho- before a vowel: trophallaxis.
a combining form meaning “an organism with nutritional requirements” of the kind specified: heterotroph.
[probably back formation from -trophic]
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