| 单词 | accretion |
| 释义 | Word Frequency accretion(əˈkriːʃən) noun 1. any gradual increase in size, as through growth or external addition 2. something added, esp extraneously, to cause growth or an increase in size 3. the growing together of normally separate plant or animal parts 4. pathology a. abnormal union or growing together of parts; adhesion b. a mass of foreign matter collected in a cavity 5. law an increase in the share of a beneficiary in an estate, as when a co-beneficiary fails to take his or her share 6. astronomy the process in which matter under the influence of gravity is attracted to and increases the mass of a celestial body. The matter usually forms an accretion disc around the accreting object 7. geology the process in which a continent is enlarged by the tectonic movement and deformation of the earth's crust Derived forms accretive (acˈcretive) or accretionary (acˈcretionary) adjective Word origin C17: from Latin accretiō increase, from accrēscere. See accrue |
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