What does distended mean?
"Distended" describes something — usually part of the body — that is swollen or enlarged because of pressure from within. A distended abdomen may be full of gas or fluid; a distended bladder is uncomfortably full; distended veins have widened under strain. The word comes from Latin roots meaning "to stretch apart," and it retains that sense of expansion driven by internal forces rather than external ones. It belongs chiefly to medical and technical registers: doctors describe distended bowels, hearts, and blood vessels, while writers sometimes use it figuratively for anything unnaturally puffed up. Because it implies abnormal stretching rather than ordinary growth, it carries an implicit note of concern — a distended organ often warrants investigation. Its precision makes it invaluable in clinical description, though in casual speech most people simply say "bloated" or "swollen." Knowing "distended" gives you a sharper, more exact tool for describing pressure-driven enlargement than any everyday alternative.
Swollen or expanded because of pressure from within; abnormally enlarged.
"The patient presented with a distended abdomen and severe discomfort."
Most common in medical writing; elsewhere it may sound technical or formal.
Past tense and past participle of "distend": to swell or cause to swell from internal pressure.
"Gas from the fermenting feed distended the animal's stomach."
Used transitively or intransitively, as with "the veins distended" or "the gas distended the tissue."
That bloated feeling after a huge meal has a Latin pedigree: 'distended' comes from 'dis-' (apart) plus 'tendere' (to stretch) — literally stretched apart from the inside.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of distended
"Distended" derives from the Latin verb "distendere," formed from "dis-" (apart) and "tendere" (to stretch), so its literal sense is "to stretch apart." English adopted the related verb "distend" in the early modern period, around the late sixteenth century, and the participial adjective "distended" followed naturally from it. It shares its Latin root "tendere" with words like "extend," "tension," and "tendon," all of which involve the idea of stretching.
Related word forms
How distended is actually used
Primarily used in medical and clinical contexts, where it carries a precise descriptive force; in general writing it can sound formal or technical. Often applied to abdomens, stomachs, veins, and bladders. It describes swelling caused by something inside pushing outward, distinguishing it from swelling caused by inflammation.
Easily confused with distended
'Extended' means stretched out or prolonged in length, time, or scope, whereas 'distended' means swollen or bulging from pressure within.