6. (Geol.)
Defn: A layer or seam, or a horizontal stratum between layers; as, a bed of coal, iron, etc.
7. (Gun.)
Defn: See Gun carriage, and Mortar bed.
8. (Masonry) (a) The horizontal surface of a building stone; as, the upper and lower beds. (b) A course of stone or brick in a wall. (c) The place or material in which a block or brick is laid. (d) The lower surface of a brick, slate, or tile. Knight.
9. (Mech.)
Defn: The foundation or the more solid and fixed part or framing of a machine; or a part on which something is laid or supported; as, the bed of an engine.
10. The superficial earthwork, or ballast, of a railroad.
11. (Printing)
Defn: The flat part of the press, on which the form is laid.