What does colocynth mean?
Colocynth is the name given both to a desert-growing vine of the gourd family (Citrullus colocynthis) and to its distinctive fruit — a smooth, round, yellowish melon that is intensely bitter and inedible. Native to arid regions around the Mediterranean and eastward into Asia, the plant has been known since antiquity, and its dried flesh was for centuries a standard ingredient of Western medicine as a powerful purgative or laxative. Because it irritates the digestive tract so severely, medical use of colocynth declined through the twentieth century, and today the word survives mainly in botanical texts, historical pharmacology, and translations of classical literature, where the fruit is sometimes identified with the 'wild gourds' gathered in Biblical narratives. The term is scholarly rather than everyday: readers meet it in reference works and histories of pharmacy more often than in conversation, yet it remains useful precisely because it anchors a rich story linking botany, ancient medicine, and the ecology of dry lands.
nounA bitter, apple-shaped fruit of the colocynth plant (Citrullus colocynthis), a desert vine related to the watermelon, long used as a purgative in medicine. Also, the plant itself.
- The dried, bitter fruit of Citrullus colocynthis, formerly used in medicine as an irritant purgative.
- The trailing desert vine itself (Citrullus colocynthis), native to the Mediterranean basin and Asia.
"Nineteenth-century apothecaries kept dried colocynth on hand as a powerful purgative."
"The herbalist ground dried colocynth into a powder to compound the old-fashioned cathartic draught."
"Across the sandy wadi, wild colocynth vines sprawled with their pale yellow, melon-like gourds."
Standard plural; used when referring to multiple fruits or plants.
"Several dried colocynths sat in jars along the apothecary's shelf."
Colocynth once appeared in official pharmacopoeias on both sides of the Atlantic — a fruit so violently bitter it was nicknamed 'bitter apple' and could purge the body within hours.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of colocynth
The word 'colocynth' entered English in the early seventeenth century from Latin coloquintida or colocynthis, which had borrowed it from Greek kolokynthis, itself adapted from a Semitic source such as Hebrew qishshu'im or related Aramaic forms naming the bitter gourd. The Greek and Latin terms passed into medieval European materia medica, preserving both the plant's identity and its reputation as a drastic purgative. Its cognates include the Latin cucurbita (gourd) lineage underlying many Romance names for gourds and squashes, reflecting the same botanical family.
How colocynth is actually used
Colocynth is a technical or historical term, encountered mainly in botany, pharmacology, and discussions of traditional medicine. Its use as a drug has largely been abandoned because it is harsh and potentially dangerous. The word carries no informal register; it is essentially scholarly.
Easily confused with colocynth
Cocculus indicus is a different bitter plant used as a fish poison and stimulant, whereas colocynth is the gourd-like fruit used chiefly as a laxative.