acrania
[ ā-krā′nē-ə, ə-krā′- ]
n.
Congenital absence of all or a part of the skull.
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Other words from acrania
a•cra′ni•al adj.Words nearby acrania
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Example sentences from the Web for acrania
The skull-less animal lancelet, which is still living, affords a faint idea of the members of this group (acrania).
Was Man Created?|Henry A. MottHence we may call it after the Acrania as well as after the Tangles.
The History of Creation, Vol. II (of 2)|Ernst HaeckelIt is absent as a distinct gland in the Acrania and Cyclostomata.