Sabot \Sa`bot"\ (s[.a]`b[=o]"), n. [F.]

1. A kind of wooden shoe worn by the peasantry in France, Belgium, Sweden, and some other European countries.

2. (Mil.) A thick, circular disk of wood, to which the cartridge bag and projectile are attached, in fixed ammunition for cannon; also, a piece of soft metal attached to a projectile to take the groove of the rifling.

Source: Webster's Revised Unabridged Dictionary (1913)