The Collaborative International Dictionary of English v.0.48:
Jerusalem \Je*ru"sa*lem\ (j[-e]*r[udd]"s[.a]*l[e^]m), n. [Gr.
'Ieroysalh`m, fr. Heb. Y[e^]r[=u]sh[=a]laim.]
The chief city of Palestine, intimately associated with the
glory of the Jewish nation, and the life and death of Jesus
Jerusalem artichoke [Perh. a corrupt. of It. girasole i.e.,
sunflower, or turnsole. See Gyre, Solar.] (Bot.)
(a) An American plant, a perennial species of sunflower
(Helianthus tuberosus), whose tubers are sometimes used
(b) One of the tubers themselves.
Jerusalem cherry (Bot.), the popular name of either of two
species of Solanum (Solanum Pseudo-capsicum and
Solanum capsicastrum), cultivated as ornamental house
plants. They bear bright red berries of about the size of
Jerusalem oak (Bot.), an aromatic goosefoot (Chenopodium
Botrys), common about houses and along roadsides.
Jerusalem sage (Bot.), a perennial herb of the Mint family
Jerusalem thorn (Bot.), a spiny, leguminous tree
(Parkinsonia aculeata), widely dispersed in warm
countries, and used for hedges.
The New Jerusalem, Heaven; the Celestial City.