Definition of "acetabula" [acetabula]

• Plural form of acetabulum. (noun)

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• "Proboscises and twining tentacles, with acetabula set upon them, act in the same way and have the same structure as those plaited instruments which were used by physicians of old to reduce dislocations of the fingers."
• "The acetabula are set in double line in all the Cephalopoda excepting in one kind of poulp, where there is but a single row."
• "The megatherium had wide iliacal expansions due to its semi-erect habits; but as its weight was in great part supported by the huge tail, and as the fermora rested in acetabula placed far forward, the leverage necessary to contract the lower portion of the pelvis was absent."