accretion

名词 accretion:

1. an increase by natural growth or addition
   同义词：accumulation
2. something contributing to growth or increase
3. (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
4. (biology) growth by addition as by the adhesion of parts or particles
5. (geology) an increase in land resulting from alluvial deposits or waterborne sediment
6. (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)

1. A peptide hormone, produced by the thyroid gland in human beings, that lowers plasma calcium and phosphate levels without augmenting calcium accretion.
   降钙素一种缩氨酸荷尔蒙，由人体内的甲状腺产生。在不增加钙含量的情况下，可降低血中钙和磷酸盐的含量