acetabulum noun. [asɪ'tabjʊlǝm] Pl. -la [-lǝ]. LME.
[Latin, from acetum vinegar + -abulum denoting a container.]
1. Roman Antiquities. A cup to hold vinegar at table; a liquid measure of the capacity of such a cup. LME.

2. Anatomy.
a. The socket of the hip-bone, with which the head of the femur articulates. L16.
b. A sucker possessed by some cephalopods, trematodes, etc. M17.

[TahlilGaran] English Dictionary ▲