malthoid
/ˈmalθɔɪd
/noun [mass noun] Australian /NZ trademark
A material impregnated with bitumen, used in roofing and as a damp-proof course in brickwork, etc. this moisture barrier might be metal, plastic, or malthoid...
- We played on coir matting, which is laid on top of the malthoid.
- It was a malthoid wicket and gee it was fast.
- Heat caused the malthoid roofing to stretch and buckle.
Origin
1930s: from maltha, a type of cement made with pitch, + -oid.