D defs.my
Entry 1 sense Webster, 1913

Belgian block

· IPA
01 An oblong, often nearly cubical, block of some tough stone, esp. granite, used as a material for street pavements. Its usual diameter is 5 …
  1. 1.
    An oblong, often nearly cubical, block of some tough stone, esp. granite, used as a material for street pavements. Its usual diameter is 5 to 7 inches.