internal hemorrhoid

noun Pathology.

See under hemorrhoid.

Nearby words

  1. internal exile,
  2. internal fistula,
  3. internal fixation,
  4. internal gear,
  5. internal hemorrhage,
  6. internal hemorrhoids,
  7. internal iliac artery,
  8. internal iliac vein,
  9. internal intercostal muscle,
  10. internal jugular vein


[ hem-uh-roid, hem-roid ]
/ ˈhɛm əˌrɔɪd, ˈhɛm rɔɪd /


Usually hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid).

Origin of hemorrhoid

1350–1400; Middle English emoroides (plural) < Latin haemorrhoid(a) < Greek haimorroḯda (adj.) discharging blood

Also called piles.

Related formshem·or·rhoi·dal, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for internal hemorrhoids

internal hemorrhoids


Hemorrhoids beneath the mucous membrane of the anal sphincter.


[ hĕmə-roid′ ]


An itching or painful mass of dilated veins in swollen anal tissue.
hemorrhoids The pathological condition in which such painful masses occur.piles

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.