Definify.com
Webster 1913 Edition
Acetabulum
‖
Acˊe-tab′u-lum
,Noun.
[L., a little saucer for vinegar, fr.
acetum
vinegar, fr. acere
to be sour.] 1.
(Rom. Antiq.)
A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.
2.
(Anat.)
(a)
The bony cup which receives the head of the thigh bone.
(b)
The cavity in which the leg of an insect is inserted at its articulation with the body.
(c)
A sucker of the sepia or cuttlefish and related animals.
(d)
The large posterior sucker of the leeches.
(e)
One of the lobes of the placenta in ruminating animals.
Webster 1828 Edition
Acetabulum
ACETAB'ULUM
,Noun.
1.
In anatomy, the cavity of a bone for receiving the protuberant end of another bone, and therefore forming the articulation called enarthrosis. It is used especially for the cavity of the os innominatum, which receives the head of the thigh bone.2.
In botany, the trivial name of a species of peziza, the cup peziza; so called from its resemblance to a cup.3.
A glandular substance found in the placenta of some animals.4.
It is sometimes used in the sense of Cotyledon.5.
A species of lichen.