auxotrophy

https://doi.org/10.1351/goldbook.A00537
The inability of an organism to synthesize a particular organic compound required for its growth.
Source:
PAC, 1992, 64, 143. 'Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)' on page 147 (https://doi.org/10.1351/pac199264010143)