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.]
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]