'Pig bed' definitions:

Definition of 'pig bed'

noun

Mold consisting of a bed of sand in which pig iron is cast [syn: pig bed, pig]

From: GCIDE

Pig \Pig\, n. [Cf. D. big, bigge, LG. bigge, also Dan. pige girl, Sw. piga, Icel. p[imac]ka.]
1. The young of swine, male or female; also, any swine; a hog. "Two pigges in a poke." --Chaucer. [1913 Webster]
2. (Zool.) Any wild species of the genus Sus and related genera. [1913 Webster]
3. [Cf. Sow a channel for melted iron.] An oblong mass of cast iron, lead, or other metal. See Mine pig, under Mine. [1913 Webster]
4. One who is hoggish; a greedy person. [Low] [1913 Webster]
Masked pig. (Zool.) See under Masked.
Pig bed (Founding), the bed of sand in which the iron from a smelting furnace is cast into pigs.
Pig iron, cast iron in pigs, or oblong blocks or bars, as it comes from the smelting furnace. See Pig, 4.
Pig yoke (Naut.), a nickname for a quadrant or sextant.
A pig in a poke (that is, bag), a blind bargain; something bought or bargained for, without the quality or the value being known. [Colloq.] [1913 Webster]