| 1. | a rock at Plymouth, Massachusetts, on which the Pilgrims who sailed on the Mayflower are said to have stepped ashore when they landed in America in 1620. |
| 2. | one of an American breed of medium-sized chickens, raised for meat and eggs. |
| Plymouth Rock n. Any of an American breed of medium-sized domestic fowl raised for both meat and eggs. [After Plymouth Rock, legendary landing place of the Pilgrims in 1620.] |
The rock, in what is now Plymouth, Massachusetts, near which the Mayflower, carrying the Pilgrims, landed in 1620.