| heterotrophic | 1. Relating to or exhibiting the properties of heterotrophy. 2. Relating to a heterotroph. (05 Mar 2000) |
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| heterotrophic enzyme | <biochemistry> An allosteric enzyme that must be modulated by a biomolecule other than its substrate. (09 Oct 1997) |
| heterotrophic oral gastrointestinal cyst | A cyst of the oral cavity lined by gastric or intestinal mucosa from misplaced embryonic rests. (05 Mar 2000) |