chap·let /ˈtʃæplɪt/
1. a wreath or garland for the head.
2. a string of beads.
3. Roman Catholic Church.
a. a string of beads, one-third of the length of a rosary, for counting prayers.
b. the prayers recited over this.
4. Architecture. a small molding carved to resemble a string of beads; astragal.
5. Metallurgy. an object for separating the core of a mold from a wall, composed of the same metal as the casting and forming an integral part of it.

[Origin: 1325-75; ME chapelet wreath < OF. See chapeau, -et]

-Related forms
chap·let·ed, adjective