JERUSALEM n.
s Christ. Jerusalem artichoke Etym: [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 as food. (b) One of the tubers themselves. -- Jerusalem cherry (Bot.), the popular…