1.Definition: (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases

Category: General

2.Definition: (biology) growth by addition as by the adhesion of parts or particles

Category: General

3.Definition: (geology) an increase in land resulting from alluvial deposits or waterborne sediment

Category: General

4.Definition: (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)

Category: General

5.Definition: an increase by natural growth or addition

Related Noun(s):accumulation

Category: General

6.Definition: something contributing to growth or increase

"He scraped away the accretions of paint", "The central city surrounded by recent accretions"

Category: General