| DDc | double concave |
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| DDD | CT double-dose-delay computed tomography |
| DDH | developmental dysplasia of the hip; Diploma in Dental Health; dissociated double hypertropia |
| DDS | damaged disc syndrome; dendrodendritic synaptosome; dental distress syndrome; depressed DNA synthesi... |
| DFPP | double filtration plasmapheresis |
| founder effect | The establishment of a new population by a few original founders (in an extreme case, by a single fertilized female) which carry only a small fraction of the total genetic variation of the parental population [Ernst Mayr, 1963]. The result is that a given allele, gene, chromosome, or part of a chromosome found in members of the population can be traced back to one ancestral individual. (09 Oct 1997) |
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