[ 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).

Nearby words

  1. hemorrhagic rickets,
  2. hemorrhagic septicemia,
  3. hemorrhagic shock,
  4. hemorrhagin,
  5. hemorrhea,
  6. hemorrhoidal,
  7. hemorrhoidal vein,
  8. hemorrhoidectomy,
  9. hemorrhoids,
  10. hemosalpinx

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hemorrhoidal

Medicine definitions for hemorrhoidal


[ hĕm′ə-roidl ]


Of or relating to hemorrhoids.
Relating to certain arteries and veins supplying the region of the rectum and anus.


[ 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.