'Damp sheet' definitions:

Definition of 'Damp sheet'

From: GCIDE
  • 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. --Milton. [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. --Addison. [1913 Webster]
  • It must have thrown a damp over your autumn excursion. --J. D. Forbes. [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 flame. [1913 Webster]