Defn: A system of calisthenics patterned on the theories of François Delsarte (1811 — 71), a French teacher of dramatic and musical expression.

DELTA
Del"ta, n.; pl. Deltas. Etym: [Gr. Delta of the Nile.]

Defn: A tract of land shaped like the letter delta (as, the delta of the Ganges, of the Nile, or of the Mississippi.

DELTA CONNECTION
Delta connection. (Elec.)

Defn: One of the usual forms or methods for connecting apparatus to a three-phase circuit, the three corners of the delta or triangle, as diagrammatically represented, being connected to the three wires of the supply circuit.

DELTA CURRENT
Delta current. (Elec.)

Defn: The current flowing through a delta connection.

DELTAFICATION
Del`ta*fi*ca"tion, n. Etym: [Delta + L. facere to make.]

Defn: The formation of a delta or of deltas. [R.]

DELTAIC
Del*ta"ic, a.