a vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.-the bony cup which receives the head of the thigh bone.-the cavity in which the leg of an insect is inserted at its articulation with the body.-a sucker of the sepia or cuttlefish and related animals.-the large posterior sucker of the leeches.-one of the lobes of the placenta in ruminating animals.