Chap″let (?), n. [F. chapelet, dim. of OF. chapel hat, garland, dim. fr. LL. cappa. See Cap, and cf. Chapelet, Chapeau.] 1. A garland or wreath to be worn on the head.
2. A string of beads, or part of a string, used by Roman Catholic in praying; a third of a rosary, or fifty beads.
Her chaplet of beads and her missal.
Longfellow.
3. (Arch.) A small molding, carved into beads, pearls, olives, etc.
4. (Man.) A chapelet. See Chapelet, 1.
5. (Founding) A bent piece of sheet iron, or a pin with thin plates on its ends, for holding a core in place in the mold.
6. A tuft of feathers on a peacock's head. Johnson.