noun a bed of shale over the seam.
2. ramble ·vi to extend or grow at random.
3. ramble ·vi to talk or write in a discursive, aimless way.
4. ramble ·noun a going or moving from place to place without any determinate business or object; an excursion or stroll merely for recreation.
5. ramble ·vi to walk, ride, or sail, from place to place, without any determinate object in view; to roam carelessly or irregularly; to rove; to wander; as, to ramble about the city; to ramble over the world.