false rib

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false rib

n.
Any of the lower ribs that do not unite directly with the sternum. The five lower pairs of ribs in humans are false ribs.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

false rib

One of the lower ribs (8, 9, and 10) that do not join the sternum directly. Their cartilage connects to the cartilage of the seventh rib. The variation in the anatomy of the lower ribs may be considerable (i.e., there may be only two false ribs).
Synonym: vertebrochondral rib
See also: rib
Medical Dictionary, © 2009 Farlex and Partners

false rib

Any of the five pairs of lower ribs that are attached to cartilages rather than directly to the breastbone (sternum). See also FLOATING RIB.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005