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1 definition found
 for Damp sheet
From The Collaborative International Dictionary of English v.0.48 :

  Damp \Damp\ (d[a^]mp), n. [Akin to LG., D., & Dan. damp vapor,
     steam, fog, G. dampf, Icel. dampi, Sw. damb dust, and to MNG.
     dimpfen to smoke, imp. dampf.]
     1. Moisture; humidity; fog; fogginess; vapor.
        [1913 Webster]
              Night . . . with black air
              Accompanied, with damps and dreadful gloom.
        [1913 Webster]
     2. Dejection; depression; cloud of the mind.
        [1913 Webster]
              Even now, while thus I stand blest in thy presence,
              A secret damp of grief comes o'er my soul.
        [1913 Webster]
              It must have thrown a damp over your autumn
              excursion.                            --J. D.
        [1913 Webster]
     3. (Mining) A gaseous product, formed in coal mines, old
        wells, pints, etc.
        [1913 Webster]
     Choke damp, a damp consisting principally of carbonic acid
        gas; -- so called from its extinguishing flame and animal
        life. See Carbonic acid, under Carbonic.
     Damp sheet, a curtain in a mine gallery to direct air
        currents and prevent accumulation of gas.
     Fire damp, a damp consisting chiefly of light carbureted
        hydrogen; -- so called from its tendence to explode when
        mixed with atmospheric air and brought into contact with
        [1913 Webster]

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