| 单词 | epigenesis |
| 释义 | Word Frequency epigenesis(ˌɛpɪˈdʒɛnɪsɪs) noun 1. the widely accepted theory that an individual animal or plant develops by the gradual differentiation and elaboration of a fertilized egg cell Compare preformation (sense 2)2. the formation or alteration of rocks after the surrounding rock has been formed 3. alteration of the mineral composition of a rock by external agents: a type of metamorphism Derived forms epigenesist (ˌepiˈgenesist) or epigenist (ɪˈpɪdʒɪnɪst) noun |
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