| COT | Old World quail |
|---|---|
| COT | the typical Old World quail |
| COT | the typical Old World quail |
| COT | embryonic leaf in seed-bearing plants |
| COT | of the cup-shaped socket that receives the head of the thigh bone |
| COT | the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint |
| COT | a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone |
| COT | of the cup-shaped socket that receives the head of the thigh bone |