| exemplifying most nearly the essential characteristics of a higher group in natural history, and forming the type |
| a theory that evolution of a species is due to a predetermined series of alterations intrinsic to the species, not due to natural selection |
regressive (rɪˈɡrɛsɪv) ![]() | |
| —adj | |
| 1. | regressing or tending to regress |
| 2. | See progressive (of a tax or tax system) levied or graduated so that the rate decreases as the amount taxed increases |
| 3. | of, relating to, or characteristic of regression |
| regressively | |
| —adv | |
| regressiveness | |
| —n | |
regressive re·gres·sive (rĭ-grěs'ĭv)
adj.
Having a tendency to return or to revert.
Characterized by regression.