scrubstone

== English == === Etymology === From scrub +‎ stone. === Noun === scrubstone (uncountable) (archaic, UK, dialect) A form of calciferous sandstone. === References === “scrubstone”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. === Anagrams === curbstones, subnectors