ostium

(redirected from ostium primum defect)
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Related to ostium primum defect: patent ductus arteriosus, ostium secundum defect

ostium

[′äs·tē·əm]
(biology)
A mouth, entrance, or aperture.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
A 20-year review of ostium primum defect repair in children.