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| ac·e·tab·u·lum [ àssə tábbyələm ] (plural ac·e·tab·u·lums or ac·e·tab·u·la [ àssə tábbyələ ]) |
noun |
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1. cavity on hipbone: the curved cavity on the side of the hipbone where the end of the thighbone fits
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2. round sucker: a round cup-shaped sucker found on flatworms, leeches, and mollusks such as the octopus
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| [14th century. < Latin, "vinegar cup, cup-shaped cavity" < acetum "vinegar"] |
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 ac·e·tab·u·lar adjective |
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