slab

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Viscid.
• noun A broad, flat, thick piece, as of stone or cheese.
• noun An outside piece cut from a log when squaring it for lumber.
• noun Baseball The pitcher's rubber.
• transitive verb To make or shape into slabs or a slab.
• transitive verb To cover or pave with slabs.
• transitive verb To dress (a log) by cutting slabs.

from The Century Dictionary.

• noun Moist earth; slime; puddle; mud.
• Thick; viscous; pasty.
• To keep (the sides of any excavation, as a mining-shaft or a well) from crumbling and falling by facing (them) with slabs, either of timber or of stone.
• noun In Australia, a piece of timber, two or three inches thick, ax hewn, not sawed: used for the walls of rough houses. Also used attributively.
• noun A flat mass of metallic tin cast in a chilling mold of stone or metal.
• noun plural A commercial name of crude rubber in pieces an inch or two thick formed by pressing several sheets together. See rubber, 3.
• noun A thick piece of timber; especially, the outer cut of a tree or log when sawed up into planks or boards.
• noun A thick plate of stone, slate, metal, etc.
• noun In general, a piece of anything solid and compact, heavy, and thin in proportion to its length and breadth, but thick enough not to be pliable, especially when of considerable size.
• noun Specifically A flat stone, or plate of iron or glass, on which printing-ink is sometimes distributed for use on a hand-press.
• noun A thick web or bat of fiber.
• To cut slabs or outside pieces from, as from a log, in order to square it for use, or that it may be sawn into boards with square edges.
• noun The wryneck.

from the GNU version of the Collaborative International Dictionary of English.

• noun A thin piece of anything, especially of marble or other stone, having plane surfaces.
• noun An outside piece taken from a log or timber in sawing it into boards, planks, etc.
• noun (Zoöl.), Prov. Eng. The wryneck.
• noun (Naut.) The slack part of a sail.
• noun (Naut.) a line or small rope by which seamen haul up the foot of the mainsail or foresail.
• noun obsolete That which is slimy or viscous; moist earth; mud; also, a puddle.
• adjective obsolete Thick; viscous.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun archaic Mud, sludge.
• noun A large, flat piece of solid material; a solid object that is large and flat.
• noun A paving stone; a flagstone.
• noun Australia A carton containing twenty-four cans of beer.
• noun slang A large, luxury pre-1980 General Motors vehicle, particularly a Buick, Oldsmobile or Cadillac.
• noun surfing A very large wave.
• noun computing A sequence of 12 adjacent bits, serving as a byte in some computers.
• verb transitive To make something into a slab.
• initialism Slow, Loud And Bangin': (US) A car that has been modified with equipment such as loudspeakers, lights, special paint, hydraulics, and any other accessories that add to the style of the vehicle.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun block consisting of a thick piece of something