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achondrogenesis

[ā-kŏn′drō-jĕn′ĭ-sĭs, ə-kŏn′-]

n.

Dwarfism characterized by various bone aplasias and hypoplasias of the extremities and a short trunk with delayed ossification of the lower spine.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.