Question

accretion
ac.cre.tion  AHD[…-kr¶“sh…n]   DJ[*6kri8.*n]  KK[*6kri.*n]
n.（名词）
1.Growth or increase in size by gradual external addition, fusion, or inclusion.
    增长：因外部的添加，连接而生长或在体积上逐渐增大
2.Something added externally to promote such growth or increase.
    增加物，添加物：为促使生长或增大的外部添加物
3.Biology The growing together or adherence of parts that are normally separate.
  【生物学】 连生，合生
4.Geology
  【地质学】
5.Slow addition to land by deposition of water-borne sediment.
    冲积层：土地因水流所带的沉淀物冲积而扩大
6.An increase of land along the shores of a body of water, as by alluvial deposit.
    冲积层：如因冲积沉淀而使土地近水的地方扩大
7.Astronomy An increase in the mass of a celestial object by the collection of surrounding interstellar gases and objects by gravity.
  【天文学】 吸积，天体增大：因重力吸引星际间的物质而引起天体的增大
ORIGIN
1.Latinaccr¶ti½  accr¶ti½n-
    拉丁语accr¶ti½  accr¶ti½n-
2.fromaccr¶tus [past participle of] accr¶scere [to grow] * see  accrue
    源自accr¶tus  [] accr¶scere的过去分词 [生长] *参见accrue
DERIVATIVES
▪accre“tionar”y  AHD:  [-sh…-nµr”¶]  或 ac.cre“tive （形容词）