What does enema mean?
An enema is a medical procedure in which fluid — usually water, saline, or a medicated solution — is introduced into the rectum through the anus, most commonly to relieve constipation, cleanse the lower bowel before diagnostic procedures such as a colonoscopy, or deliver medication directly. The word also refers informally to the apparatus used for this purpose, such as a squeeze bulb or gravity-fed bag fitted with a nozzle. Enemas are administered by healthcare professionals in hospitals and clinics and are also available as over-the-counter kits for home use. The tone of the word is clinical rather than vulgar, though it can provoke mild embarrassment in everyday conversation, so it tends to appear mainly in medical writing, patient instructions, and historical accounts of medicine. The adjective form 'enematic' exists but is rare; related terms include 'barium enema', a specific diagnostic imaging technique. Understanding this word is useful for reading medical documents and discussing gastrointestinal care accurately.
An injection of liquid into the rectum, typically to induce evacuation of the bowels, cleanse the colon, or administer medication.
"The patient was given a warm water enema prior to surgery."
In clinical practice, 'enema' refers both to the procedure itself and, by extension, to the solution injected.
The device or apparatus — such as a bulb syringe or bag-and-nozzle kit — used to administer such an injection.
"She bought an enema kit from the pharmacy."
'Enemas' is the standard English plural. The Latinate plural 'enemata' appears occasionally in formal or historical medical texts but is rare today.
"Repeated enemas can disturb the balance of electrolytes in the body."
The word 'enema' has been in medical use since ancient Greece — Hippocrates himself prescribed them over 2,000 years ago.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of enema
The word 'enema' comes from Greek 'énema' (ἔνεμα), meaning 'injection' or 'a thing poured in', derived from the verb 'eniénai' (ἐνιέναι), 'to send in' or 'to inject', from 'en-' ('in') plus 'hienai' ('to send, throw'). It entered English via Latin and late Middle French during the early modern period, when it was already well established in learned medical usage alongside the now-archaic synonym 'clyster' from the same classical tradition.
Related word forms
How enema is actually used
Clinical register; in medical contexts often replaced by euphemisms like 'bowel prep' or 'colonic'. The plural 'enemas' is standard in everyday English, while 'enemata' is the Latin-style plural occasionally seen in older or very formal medical texts. The term can carry a mildly humorous or taboo connotation in casual conversation.
Easily confused with enema
Anemia is a deficiency of red blood cells or hemoglobin, whereas an enema is a procedure involving the injection of liquid into the rectum.