sib(redirected from SIBB)
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1. a blood relative; one of a group of persons all descended from a common ancestor.
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 member of a sibship.
Farlex Partner Medical Dictionary © Farlex 2012
A brother or sister.
[A.S. sib, relation, + -ling, diminutive]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
siba brother or sister.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005