||Ac`e*tab"u*lum (&?;), n. [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.

• (Roman Antiquities): a vinegar cup;
  
• (Roman Antiquities): the socket of the hipbone;
  
• (Roman Antiquities): a measure of about one eighth of a pint
  
• (Anatomy)): The bony cup which receives the head of the thigh bone.
  
• (Anatomy)): The cavity in which the leg of an insect is inserted at its articulation with the body.
  
• (Anatomy)): A sucker of the sepia or cuttlefish and related animals.
  
• (Anatomy)): The large posterior sucker of the leeches.
  
• (Anatomy)): One of the lobes of the placenta in ruminating animals.
  
  [[Latin]]
• A little saucer for vinegar.