I. ˈmä]m, ˈmȧ] also ]lm\ noun
( -s )
Etymology: Middle English malme, from Old English mealm-; akin to Old Norse malmr metal, ore, Gothic malma sand, Old English melu meal — more at meal
1. dialect chiefly England
a. : a soft friable chalky limestone
b. : a light clayey soil containing chalk : marl
2.
a. : an artificial mixture of clay and chalk used in the manufacture of bricks
b. : malm brick
II. transitive verb
( -ed/-ing/-s )
1. : to convert (clay and chalk) into artificial malm
2. : to cover or treat (brick earth) with artificial malm
III. adjective
Usage: usually capitalized
: of, relating to, or constituting a subdivision of the European Jurassic — see geologic time table