Medical term:

agenesis



agenesis

 [a-jen´ĕ-sis]
absence of an organ due to nonappearance of its primordium in the embryo.
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·gen·e·sis

(ā-jen'ĕ-sis),
Absence or failure to form of any part.
[G. a- priv. + genesis, production]
Farlex Partner Medical Dictionary © Farlex 2012

agenesis

(ā-jĕn′ĭ-sĭs)
n.
Absence or incomplete development of an organ or body part.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

Agenesis

The incomplete or complete nondevelopment of a body part, organ or tissue.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

agenesis

Embryology The incomplete or nondevelopment of a body part, organ or tissue. See Anal agenesis, Renal agenesis.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

a·gen·e·sis

(ā-jen'ĕ-sis)
Absence or failure of formation of any part.
[G. a- priv. + genesis, production]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

agenesis

Absence of an organ or part as a result of failure of development in the early stages. The drug THALIDOMIDE caused agenesis of the limbs.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

a·gen·e·sis

(ā-jen'ĕ-sis)
Absence or failure to form of any part.
[G. a- priv. + genesis, production]
Medical Dictionary for the Dental Professions © Farlex 2012


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