rider stone
now historical
noun
1 Mining (the name of) a stratum of ironstone within the coal measures of Staffordshire, England.
2= rider millstone.
Origin
Mid 17th century; earliest use found in Dud Dudley (?1600–1684), ironmaster.
- millennium bomb
- millennium bug
- millenniumism
- millepede
- millepore
- milleporine
- miller
- millerandage
- Miller, Arthur
- Miller effect
- Miller, Glenn
- Miller, Henry
- Millerian
- Miller integrator
- Millerism
- millerite
- Miller, Samuel Freeman
- miller's thumb
- Miller–Dieker syndrome
- millesimal
- millesimally
- millet
- millet ale
- millet-beer
- millet grass