labrum

(redirected from acetabular glenoidal labrum)
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labrum

[′lā·brəm]
(invertebrate zoology)
The upper lip of certain arthropods, lying in front of or above the mandibles.
The outer edge of a gastropod shell.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.