| Word | Definitions | Synonyms |
|---|---|---|
| dihybrid | (noun) a hybrid produced by parents that differ only at two gene loci that have two alleles each | - |
| dihydrostreptomycin | (noun) antibiotic consisting of a hydrogenated form of streptomycin; used against tuberculosis and tularemia and Gram-negative organisms | - |
| dihydroxyphenylalanine | (noun) amino acid that is formed in the liver and converted into dopamine in the brain | Synonyms: dopa |