What does emodin mean?
Emodin is a naturally occurring organic compound belonging to the anthraquinone family of chemicals. It is found in a number of medicinal plants, most notably rhubarb, along with buckthorn, cascara sagrada, and certain species of aloe. Historically, its presence accounted for the well-known laxative properties of these botanical remedies, and it remains a subject of pharmacological research into its various biological activities. The name derives from the ancient Greek designation for the Himalayan region, reflecting the geographic origin of the rhubarb from which the compound was first isolated. In modern usage, emodin appears almost exclusively in scientific and medical writing — on supplement labels, in pharmacology papers, and in regulatory discussions of herbal products, since some jurisdictions limit its concentration owing to safety concerns at high doses. For general readers it is chiefly of interest as the active constituent behind traditional plant medicines.
nounA naturally occurring anthraquinone compound found in plants such as rhubarb, buckthorn, and aloe, used chiefly in research and formerly as a laxative agent.
- A purgative and biologically active anthraquinone found in medicinal plants such as rhubarb, cascara, and aloe.
"Rhubarb root owes much of its purgative effect to its high emodin content."
"The herbal supplement was standardized to contain a fixed amount of emodin."
"Researchers have studied emodin for its effects on cell growth in laboratory settings."
Rarely pluralized; typically treated as an uncountable mass noun referring to the compound generally.
"The extract contained trace amounts of several emodins and related anthraquinones."
Emodin takes its name from the ancient Greek name for the Himalayas — the mountains where the rhubarb that yields it once grew.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of emodin
The name emodin derives ultimately from Emodus, an ancient Greek name applied to the Himalayan mountains, through which the rhubarb yielding the compound reached European medicine. The compound was isolated and named in the nineteenth century by chemists studying the constituents of rhubarb root. It belongs to the anthraquinone class of compounds, several members of which share its purgative activity and occur alongside it in the same plants.
How emodin is actually used
Strictly a technical term, encountered mainly in pharmacology, chemistry, and discussions of herbal medicine; it is rare in everyday speech.
Easily confused with emodin
An emoticon is a text symbol conveying an expression such as :-), whereas emodin is a chemical compound extracted from plants.