quaternaries

英[kwə'tɜːnərɪ] 美[kwə'tɜːnərɪ]
  • adj.第四纪的;四的;四进制的n.四;四进制;第四纪
quaternaries
Noun:
  1. last 2 million years

  2. the cardinal number that is the sum of three and one

Adjective:
  1. consisting of or especially arranged in sets of four;

    "quaternate leaves"
    "a quaternary compound"

  2. coming next after the third and just before the fifth in position or time or degree or magnitude;

    "the quaternary period of geologic time extends from the end of the tertiary period to the present"

    用作形容词 (adj.)
    1. The Quaternary sediments are largely undeformed.
      第四纪的沉积物大部分未变形。
    2. Industries based on brainwork or knowledge are called the quaternary industry.
      以脑力劳动或知识为基础的产业被称为第四产业。