disk harrow or disc harrow
n.
A harrow equipped with a series of sharp metal disks set on edge or at an angle on one or more axles.
disk harrow- William Penn Adair
- William Randolph
- "William Rufus."
- Williams
- Williams
- Williams
- Williams
- Williams
- Williams
- Williams
- Williams
- Williams
- William Samuel
- Williamsburg
- William Schwenck
- William Seward
- William Seward
- William Smith
- W(illiam) Somerset
- Williamsport
- William Starke
- William Sydney
- William Tatem, Jr.
- William Tecumseh
- "William the Conqueror."