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Cambrian    音標拼音: [k'æmbriən]
a. 寒武紀的
n. Cambria人,Wales人,寒武紀層

寒武紀的Cambria人,Wales人,寒武紀層

Cambrian
adj 1: of or relating to or characteristic of Wales or its
people or their language; "the Welsh coast"; "Welsh
syntax" [synonym: {Welsh}, {Cambrian}]
n 1: from 544 million to about 500 million years ago; marine
invertebrates [synonym: {Cambrian}, {Cambrian period}]
2: a native or resident of Wales [synonym: {Welshman}, {Welsh},
{Cambrian}, {Cymry}]

Primordial \Pri*mor"di*al\, a. [L. primordialis, from primordium
the first beginning; primus first ordiri to begin a web, to
begin: cf. F. primordial.]
1. First in order; primary; original; of earliest origin; as,
primordial condition. "The primordial facts of our
intelligent nature." --Sir W. Hamilton.
[1913 Webster]

2. (Geol.) Of or pertaining to the lowest beds of the
Silurian age, corresponding to the Acadian and Potsdam
periods in American geology. It is called also {Cambrian},
and by many geologists is separated from the Silurian.
[1913 Webster]

3. (Biol.) Originally or earliest formed in the growth of an
individual or organ; as, a primordial leaf; a primordial
cell.
[1913 Webster]

{Primordial utricle} (Bot.), the interior lining of a young
vegetable cell.
[1913 Webster]


Cambrian \Cam"bri*an\, a.
1. (Geog.) Of or pertaining to Cambria or Wales.
[1913 Webster]

2. (Geol.) Of or pertaining to the lowest subdivision of the
rocks of the Silurian or Molluscan age; -- sometimes
described as inferior to the Silurian. It is named from
its development in Cambria or Wales. See the Diagram under
{Geology}.
[1913 Webster]


Cambrian \Cam"bri*an\, n.
1. A native of Cambria or Wales.
[1913 Webster]

2. (Geol.) The Cambrian formation.
[1913 Webster]

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英文字典中文字典相關資料:
  • Cambrian - Wikipedia
    The Cambrian ( ˈkæmbri ən, ˈkeɪm - KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon [5] The Cambrian lasted 51 95 million years from the end of the preceding Ediacaran period 538 8 Ma (million years ago) to the beginning of the Ordovician Period 486 85 Ma [1]
  • Cambrian Period | Definition, Plants, Animals | Britannica
    Cambrian Period, earliest time division of the Paleozoic Era, extending from 538 8 million to 485 4 million years ago
  • Cambrian Period—541 to 485. 4 MYA - U. S. National Park Service
    The Cambrian Period marks an important point in the history of life on Earth; it is the time when many kinds of invertebrates and the first vertebrates—fishes—appeared in the fossil record
  • The Cambrian Period
    The Cambrian world was bracketed between two ice ages, one during the late Proterozoic and the other during the Ordovician During these ice ages, the decrease in global temperature led to mass extinctions
  • Cambrian Period - National Geographic
    Learn more about a time period marked by an intense burst of evolution The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known The Cambrian
  • What Is the Cambrian Explosion and Why Was It So Important?
    The Cambrian Period began approximately 541 million years ago and lasted about 55 million years But the “explosion”—that rapid burst of evolutionary innovation—occurred mostly within the first 20 to 25 million years of the Cambrian, making it extraordinarily fast by geological standards
  • CAMBRIAN Definition Meaning - Merriam-Webster
    In a study published in July, researchers from the University of Cambridge announced a first-of-its-kind discovery of thousands of microscopic fossils from the Cambrian period unearthed from the Grand Canyon’s walls





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