Pitch n.
 1. A thick, black, lustrous, and sticky substance obtained by boiling down tar. It is used in calking the seams of ships; also in coating rope, canvas, wood, ironwork, etc., to preserve them.
    He that toucheth pitch shall be defiled therewith.   --Ecclus. xiii. 1.
 2. Geol. See Pitchstone.
 Amboyna pitch, the resin of Dammara australis. See Kauri.
 Burgundy pitch. See under Burgundy.
 Canada pitch, the resinous exudation of the hemlock tree (Abies Canadensis); hemlock gum.
 Jew's pitch, bitumen.
 Mineral pitch. See Bitumen and Asphalt.
 Pitch coal Min., bituminous coal.
 Pitch peat Min., a black homogeneous peat, with a waxy luster.
 Pitch pine Bot., any one of several species of pine, yielding pitch, esp. the Pinus rigida of North America.