Nearby Words

acetabula

[as-i-tab-yuh-luhm]

ac·e·tab·u·lum

[as-i-tab-yuh-luhm]
noun, plural -la [-luh] .
1.
Anatomy. the socket in the hipbone that receives the head of the thighbone.
2.
Zoology. any of the suction appendages of a leech, octopus, etc.

Origin:
1660–70; < Latin: hip socket, cup-shaped part of a plant (Pliny), literally, small cup, orig. for vinegar, equivalent to acēt(um) vinegar + -ā- by analogy with verbal derivatives (compare vocable) + -bulum suffix denoting instrument or vessel

ac·e·tab·u·lar, adjective
post·ac·e·tab·u·lar, adjective
pre·ac·e·tab·u·lar, adjective
sub·ac·e·tab·u·lar, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Acetabula is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
the offspring of a zebra and a donkey.
American Heritage
Medical Dictionary

acetabulum ac·e·tab·u·lum (ās'ĭ-tāb'yə-ləm)
n. pl. ac·e·tab·u·la (-lə)
The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits. Also called cotyloid cavity.


ac'e·tab'u·lar adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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