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the membranous fold partly or completely closing the vaginal orifice. adj., adj hy´menal.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A thin, membranous fold of highly variable appearance that partly occludes the ostium of the vagina before its rupture (which may occur for a variety of reasons). It is frequently absent (even in virgins), although remnants are commonly present as hymenal caruncula tags.
[G. hymēn, membrane]
Farlex Partner Medical Dictionary © Farlex 2012
A membranous fold of tissue that partly or completely occludes the external vaginal orifice.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
hymenA mucosal membrane which partially blocks the vaginal introitus (opening), the integrity of which is regarded as a sign of female virginity.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
A thin membranous fold, highly variable in appearance, which partly occludes the ostium of the vagina before its rupture, which may occur for a variety of reasons. It is frequently absent, even in virgins, although remnants are commonly present as hymenal tags (caruncula).
[G. hymēn, membrane]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
hymenThe thin, fringe-like ring of skin that partly occludes the lower end of the vagina in the virgin. Hymens vary considerably in thickness and extent and may even be imperforate, requiring a minor operation to allow menstruation. The hymen is usually torn during the first sexual intercourse and this may cause some bleeding. From the Greek Humen , the God of marriage.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
hymena fold of mucous membrane stretched across the entrance to the vagina in some mammals. There is normally a small opening in it and the hymen is ruptured during the first copulation.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
A membrane that partially or completely covers the vaginal opening.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.