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The Collaborative International Dictionary
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.

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

    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.

Wiktionary
glacial drift

n. (context geology English) An accumulation of earth and rock which have been transported by moving ice, land ice, or icebergs.

Usage examples of "glacial drift".

Universal literacy, longish lifespan, slow breeding and the conservative nature of the Ykx meant that language change occurred with the deliberation of glacial drift, but centuries do add up to real time if you have enough of them and Rallen was colonized a long long LONG time ago.