JAKWOOD
Jak"wood`, n.
Defn: See Jackwood.
JALAP Jal"ap, n. Etym: [F., fr. Sp. jalapa; — so called from Jalapa, a town in Mexico, whence it was first obtained.] (Med.)
Defn: The tubers of the Mexican plant Ipomoea purga (or Exogonium purga), a climber much like the morning-glory. The abstract, extract, and powder, prepared from the tubers, are well known purgative medicines. Other species of Ipomoea yield several inferior kinds of jalap, as the I. Orizabensis, and I. tuberosa. False jalap, the root of Mirabilis Jalapa, four-o'clock, or marvel of Peru.
JALAPIC
Ja*lap"ic, a.
Defn: Of or pertaining to jalap.
JALAPIN
Jal"a*pin, n. (Chem.)
Defn: A glucoside found in the stems of the jalap plant and scammony.
It is a strong purgative.
JALONS
Ja`lons", n. pl. Etym: [F. Of unknown origin.] (Mil.)
Defn: Long poles, topped with wisps of straw, used as landmarks and signals. Farrow.