SPONGE n.
The extremity, or point, of a horseshoe, answering to the heel. Bath sponge, any one of several varieties of coarse commercial sponges, especially Spongia equina. -- Cup sponge, a toilet sponge growing in a cup-shaped form. -- Glass sponge. See Glass-sponge, in the Vocabulary. -- Glove sponge, a variety of commercia…
STUB n.
A stub nail; an old horseshoe nail; also, stub iron. Stub end (Mach.), the enlarged end of a connecting rod, to which the strap is fastened. -- Stub iron, iron made from stub nails, or old horseshoe nails, -- used in making gun barrels. -- Stub mortise (Carp.), a mortise passing only partly through the timber in whic…