Definition of "murram"
murram
noun
uncountable
(East Africa, India) Laterite.
Quotations
page xxvi: Murram: Generally iron concretions formed in tropical soils, transitional to, or an early stage of, laterite formation.page 73, in figure: Brownish red loam with murram in subsoilpage 75: In ferruginous tropical soils and ferrallites (Table 10) much iron released in weathering is often redeposited in the form of gravelly concretions locally termed murram. The word ‘laterite’ has been used for two distinct forms of precipitated iron.
1976, Norman Francis Hughes, “Manual of Applied Geology for Engineers”, in Institution of Civil Engineers, Thomas Telford
Tracks and roads were at first rough and rutted, and quickly became quagmires in the rainy seasons before being surfaced first with "murram" gravel, later with tarmac.
1991, Donald B. Freeman, A City of Farmers: Informal Urban Agriculture in the Open Spaces of Nairobi, Kenya, McGill-Queen's Press, page 33