The Collaborative International Dictionary
Colocynth \Col"ocynth\, n. [L. colocynthis, Gr. ?. Cf. Coloquintida.] (Med.) The light spongy pulp of the fruit of the bitter cucumber ( Citrullus colocynthis, or Cucumis colocynthis), an Asiatic plant allied to the watermelon; coloquintida. It comes in white balls, is intensely bitter, and a powerful cathartic. Called also bitter apple, bitter cucumber, bitter gourd.
Wiktionary
n. A viny plant, (taxlink Citrullus colocynthis species noshow=1), native to the Mediterranean Basin and Asia. It produces a lemon-sized, yellowish, green-mottled, spongy, and extremely bitter fruit, a powerful hepatic stimulant and hydragogue cathartic used as a strong laxative.
Usage examples of "colocynth".
The Bitter Cucumber is another name for Colocynth (Citrullus Colocynthis, Schrader).
The extracts made from some exotic species of this tribe, as the Squirting Cucumber (Momordica elaterium) and the Colocynth (Cucumis Colocynthis), afford useful medicine.