noun

• 1A soft, crumbly chalky rock, or the fertile loamy soil produced as it weathers.

  1. 1.1A fine-quality brick made originally from malm, marl, or a similar chalky clay.
     ‘I also heard about adding mineral rocks (malm brick) and brownite.’
     More example sentences

     • ‘I am thinking about bringing up the walls with lime malm brick.’