| accretion | (law) an increase in a beneficiary's share in an estate (as when a co-beneficiary dies or fails to meet some condition or rejects the inheritance) |
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| accretion | an increase by natural growth or addition |
| accretion | (geology) an increase in land resulting from alluvial deposits or water-borne sediment |
| accretion | (biology) growth by addition as by the adhesion of parts or particles |
| accretion | (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases |
| accretion | something contributing to growth or increase |
| accretion | marked or produced by accretion |