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