3. (Metal.)
(a) A channel or runner which receives the rows of molds
in the pig bed.
(b) The bar of metal which remains in such a runner.
(c) A mass of solidified metal in a furnace hearth; a
salamander.
4. (Mil.) A kind of covered shed, formerly used by besiegers
in filling up and passing the ditch of a besieged place,
sapping and mining the wall, or the like. --Craig.
{Sow bread}. (Bot.) See {Cyclamen}.
{Sow bug}, or {Sowbug} (Zo["o]l.), any one of numerous
species of terrestrial Isopoda belonging to {Oniscus},
{Porcellio}, and allied genera of the family
{Oniscid[ae]}. They feed chiefly on decaying vegetable
substances.
{Sow thistle} [AS. sugepistel] (Bot.), a composite plant
({Sonchus oleraceus}) said to be eaten by swine and some
other animals.