jalap noun & verb. ['dʒalǝp, 'dʒɒlǝp] M17.
[French from Spanish jalapa, in full purga de Jalapa, from Jalapa, Xalapa a Mexican city. Cf. JOLLOP noun².]
A. noun.
1. A purgative drug obtained from the tuberous roots of a Mexican climbing plant, Ipomoea purga, and from certain other plants of the bindweed family. M17.

2. The plant yielding this drug; (with specifying word) any of certain other plants yielding a similar drug. L17.
false jalap = marvel of Peru s.v. MARVEL noun¹.
b. verb trans. Dose or purge with jalap. rare. M18.

[TahlilGaran] English Dictionary ▲