abundance

[əˈbʌndəns] [əˈbʌndəns]
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  • Noun
    1. the property of a more than adequate quantity or supply;
    "an age of abundance"
    2. (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present
    3. (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million
行业词典
  • 动物学: 多度;
    昆虫学: 多度;丰度;豐量;
    植物学: 多度;
    水产: 丰度;某一水域单位水体或生物群落中某一种生物的个体数量。;
    海洋科学: 丰度;
    生态学: 多度;表示一个种群在群落中个体数目的多少或丰富程度的指标。;