3. (Hydraul. Engin.)

Defn: A structure of wood or stone extended into the sea to influence the current or tide, or to protect a harbor; a mole; as, the Eads system of jetties at the mouth of the Mississippi River. Jetty ad (Naut.), a projecting part at the end of a wharf; the front of a wharf whose side forms one of the cheeks of a dock.

JETTY
Jet"ty, v. i.

Defn: To jut out; to project. [Obs.] Florio.

JEU D'ESPRIT
Jeu" d'es`prit". Etym: [F., play of mind.]

Defn: A witticism.

JEUNESSE DOREE
Jeu`nesse" do`rée". [F.]

Defn: Lit., gilded youth; young people of wealth and fashion, esp. if given to prodigal living; — in the French Revolution, applied to young men of the upper classes who aided in suppressing the Jacobins after the Reign of Terror.

JEW Jew, n. Etym: [OF. Juis, pl., F. Juif, L. Judaeus, Gr. Y Judah, son of Jacob. Cf. Judaic.]

Defn: Originally, one belonging to the tribe or kingdom of Judah; after the return from the Babylonish captivity, any member of the new state; a Hebrew; an Israelite. Jew's frankincense, gum styrax, or benzoin. — Jew's mallow (Bot.), an annual herb (Corchorus olitorius) cultivated in Syria and Egypt as a pot herb, and in India for its fiber. — Jew's pitch, asphaltum; bitumen. — The Wandering Jew, an imaginary personage, who, for his cruelty to the Savior during his passion, is doomed to wander on the earth till Christ's second coming.