| 单词 | intergradation |
| 释义 | intergradation —intergradational, adj. /in'teuhr gray day"sheuhn/, n. 1. the act or process of intergrading or the state of being intergraded. 2. an evolutionary process by which different species of organisms tend to merge through a series of intermediate stages or grades. [1870-75; INTER- + GRADATION] |
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