Slab (?), n. [OE. slabbe, of uncertain origin; perhaps originally meaning, a smooth piece, and akin to slape, Icel. sleipr slippery, and E. slip, v. i.]
1.
A thin piece of anything, especially of marble or other stone, having plane surfaces.
Gwilt.
2.
An outside piece taken from a log or timber in sawing it into boards, planks, etc.
3. Zool.
The wryneck.
[Prov. Eng.]
4. Naut.
The slack part of a sail.
Slab line Naut., a line or small rope by which seamen haul up the foot of the mainsail or foresail.
Totten.
© Webster 1913.
Slab, a. [Cf. Gael. & Ir. slaib mud, mire left on a river strand, and E. slop puddle.]
Thick; viscous.
[Obs.]
Make the gruel thick and slab.
Shak.
© Webster 1913.
Slab, n.
That which is slimy or viscous; moist earth; mud; also, a puddle.
[Obs.]
Evelyn.
© Webster 1913.