Glacial epoch

Glacial epoch
Glacial Gla"cial, a. [L. glacialis, from glacies ice: cf. F. glacial.] 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena. --Lyell. [1913 Webster]

2. (Chem.) Resembling ice; having the appearance and consistency of ice; -- said of certain solid compounds; as, glacial phosphoric or acetic acids. [1913 Webster]

{Glacial acid} (Chem.), an acid of such strength or purity as to crystallize at an ordinary temperature, in an icelike form; as acetic or carbolic acid.

{Glacial drift} (Geol.), earth and rocks which have been transported by moving ice, land ice, or icebergs; bowlder drift.

{Glacial epoch} or {Glacial period} (Geol.), a period during which the climate of the modern temperate regions was polar, and ice covered large portions of the northern hemisphere to the mountain tops.

{Glacial theory} or {Glacial hypothesis}. (Geol.) See {Glacier theory}, under {Glacier}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • glacial epoch — n. ICE AGE the Glacial Epoch the Pleistocene Epoch …   English World dictionary

  • Glacial epoch — noun from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution • Syn: ↑Pleistocene, ↑Pleistocene epoch • Instance Hypernyms: ↑epoch • Part Holonyms: ↑Quaternary, ↑ …   Useful english dictionary

  • glacial epoch — noun any period of time during which glaciers covered a large part of the earth s surface the most recent ice age was during the Pleistocene • Syn: ↑ice age, ↑glacial period • Hypernyms: ↑period, ↑geological period • Part Holonym …   Useful english dictionary

  • glacial epoch — /gleɪʃəl ˈipɒk/ (say glayshuhl eepok) noun 1. any of the glaciations of past geological periods as in Australia during the Permian. 2. the glacial epoch, the geologically recent Pleistocene epoch, during which much of the Northern Hemisphere was… …  

  • glacial epoch — 1. Also called glacial period, ice age. the geologically recent Pleistocene Epoch, during which much of the Northern Hemisphere was covered by great ice sheets. 2. any one of the Permian, Carboniferous, Cambrian, or Precambrian glaciations. [1840 …   Universalium

  • glacial epoch — ice age, period in history when glaciers covered most of the surface of the earth …   English contemporary dictionary

  • Glacial — Gla cial, a. [L. glacialis, from glacies ice: cf. F. glacial.] 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena. Lyell. [1913 Webster] 2. (Chem.) Resembling ice; having the …   The Collaborative International Dictionary of English

  • Glacial acid — Glacial Gla cial, a. [L. glacialis, from glacies ice: cf. F. glacial.] 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena. Lyell. [1913 Webster] 2. (Chem.) Resembling ice;… …   The Collaborative International Dictionary of English

  • Glacial drift — Glacial Gla cial, a. [L. glacialis, from glacies ice: cf. F. glacial.] 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena. Lyell. [1913 Webster] 2. (Chem.) Resembling ice;… …   The Collaborative International Dictionary of English

  • Glacial hypothesis — Glacial Gla cial, a. [L. glacialis, from glacies ice: cf. F. glacial.] 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena. Lyell. [1913 Webster] 2. (Chem.) Resembling ice;… …   The Collaborative International Dictionary of English

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