CHORISTER
Chor"is*ter, n. Etym: [See Chorus.]
1. One of a choir; a singer in a chorus. Dryden.
2. One who leads a choir in church music. [U. S.]
CHORISTIC
Cho*ris"tic, a.
Defn: Choric; choral. [R.]
CHOROGRAPH
Cho"ro*graph, n. Etym: [Gr. -graph.]
Defn: An instrument for constructing triangles in marine surveying, etc.
CHOROGRAPHER
Cho*rog"ra*pher, n.
1. One who describes or makes a map of a district or region. "The chorographers of Italy." Sir T. Browne.
2. A geographical antiquary; one who investigates the locality of ancient places.