Webster
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Webster’s Revised Unabridged Dictionary · 1913

Jalap

Jal′ap (jăl′ap), n. [F., fr. Sp. jalapa; — so called from Jalapa, a town in Mexico, whence it was first obtained.] (Med.) The tubers of the Mexican plant Ipomœa 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 Ipomœa 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.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty. Of the others, 1,362 (a word or a single letter each) were inferred by AI from the context by the dictionary’s own rules and are marked with a wavy underline (tap or point at one to see the note); the rest, which could not be inferred with confidence, are left as “?”.