\Ra`bat"\, n. [F. Cf. {Rabato}.] (Eccl.)
(a) A clerical linen collar.
(b) A kind of clerical scarf fitted to a collar; as, a black
    silk rabat.

\Rab"at\, n. [See {Rabot}.]
A polishing material made of potter's clay that has failed in
baking.